all: gofmt

Gofmt to update doc comments to the new formatting.

For golang/go#51082.

Change-Id: Iae65e4d8854b66205e4cbcdd1ae0eec48c582496
Reviewed-on: https://go-review.googlesource.com/c/image/+/399615
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
diff --git a/ccitt/gen.go b/ccitt/gen.go
index 6f37e76..bf8aa7f 100644
--- a/ccitt/gen.go
+++ b/ccitt/gen.go
@@ -224,9 +224,9 @@
 		writeComment(w, n.children[0], prefixUp, false)
 		defer writeComment(w, n.children[1], prefixDown, true)
 
-		fmt.Fprintf(w, "// b%03d ", n.branchIndex)
+		fmt.Fprintf(w, "//\tb%03d ", n.branchIndex)
 	} else {
-		fmt.Fprintf(w, "//      ")
+		fmt.Fprintf(w, "//\t     ")
 	}
 
 	w.WriteString(prefix[:len(prefix)-2])
diff --git a/ccitt/table.go b/ccitt/table.go
index ef7ea9d..8b3794b 100644
--- a/ccitt/table.go
+++ b/ccitt/table.go
@@ -31,27 +31,27 @@
 
 // modeDecodeTable represents Table 1 and the End-of-Line code.
 //
-//                    +=XXXXX
-// b009             +-+
-//                  | +=v0009
-// b007           +-+
-//                | | +=v0008
-// b010           | +-+
-//                |   +=v0005
-// b006         +-+
-//              | | +=v0007
-// b008         | +-+
-//              |   +=v0004
-// b005       +-+
-//            | +=v0000
-// b003     +-+
-//          | +=v0001
-// b002   +-+
-//        | | +=v0006
-// b004   | +-+
-//        |   +=v0003
-// b001 +-+
-//        +=v0002
+//	                   +=XXXXX
+//	b009             +-+
+//	                 | +=v0009
+//	b007           +-+
+//	               | | +=v0008
+//	b010           | +-+
+//	               |   +=v0005
+//	b006         +-+
+//	             | | +=v0007
+//	b008         | +-+
+//	             |   +=v0004
+//	b005       +-+
+//	           | +=v0000
+//	b003     +-+
+//	         | +=v0001
+//	b002   +-+
+//	       | | +=v0006
+//	b004   | +-+
+//	       |   +=v0003
+//	b001 +-+
+//	       +=v0002
 var modeDecodeTable = [...][2]int16{
 	0:  {0, 0},
 	1:  {2, ^2},
@@ -68,215 +68,215 @@
 
 // whiteDecodeTable represents Tables 2 and 3 for a white run.
 //
-//                      +=XXXXX
-// b059               +-+
-//                    | |     +=v1792
-// b096               | |   +-+
-//                    | |   | | +=v1984
-// b100               | |   | +-+
-//                    | |   |   +=v2048
-// b094               | | +-+
-//                    | | | |   +=v2112
-// b101               | | | | +-+
-//                    | | | | | +=v2176
-// b097               | | | +-+
-//                    | | |   | +=v2240
-// b102               | | |   +-+
-//                    | | |     +=v2304
-// b085               | +-+
-//                    |   |   +=v1856
-// b098               |   | +-+
-//                    |   | | +=v1920
-// b095               |   +-+
-//                    |     |   +=v2368
-// b103               |     | +-+
-//                    |     | | +=v2432
-// b099               |     +-+
-//                    |       | +=v2496
-// b104               |       +-+
-//                    |         +=v2560
-// b040             +-+
-//                  | | +=v0029
-// b060             | +-+
-//                  |   +=v0030
-// b026           +-+
-//                | |   +=v0045
-// b061           | | +-+
-//                | | | +=v0046
-// b041           | +-+
-//                |   +=v0022
-// b016         +-+
-//              | |   +=v0023
-// b042         | | +-+
-//              | | | | +=v0047
-// b062         | | | +-+
-//              | | |   +=v0048
-// b027         | +-+
-//              |   +=v0013
-// b008       +-+
-//            | |     +=v0020
-// b043       | |   +-+
-//            | |   | | +=v0033
-// b063       | |   | +-+
-//            | |   |   +=v0034
-// b028       | | +-+
-//            | | | |   +=v0035
-// b064       | | | | +-+
-//            | | | | | +=v0036
-// b044       | | | +-+
-//            | | |   | +=v0037
-// b065       | | |   +-+
-//            | | |     +=v0038
-// b017       | +-+
-//            |   |   +=v0019
-// b045       |   | +-+
-//            |   | | | +=v0031
-// b066       |   | | +-+
-//            |   | |   +=v0032
-// b029       |   +-+
-//            |     +=v0001
-// b004     +-+
-//          | |     +=v0012
-// b030     | |   +-+
-//          | |   | |   +=v0053
-// b067     | |   | | +-+
-//          | |   | | | +=v0054
-// b046     | |   | +-+
-//          | |   |   +=v0026
-// b018     | | +-+
-//          | | | |     +=v0039
-// b068     | | | |   +-+
-//          | | | |   | +=v0040
-// b047     | | | | +-+
-//          | | | | | | +=v0041
-// b069     | | | | | +-+
-//          | | | | |   +=v0042
-// b031     | | | +-+
-//          | | |   |   +=v0043
-// b070     | | |   | +-+
-//          | | |   | | +=v0044
-// b048     | | |   +-+
-//          | | |     +=v0021
-// b009     | +-+
-//          |   |     +=v0028
-// b049     |   |   +-+
-//          |   |   | | +=v0061
-// b071     |   |   | +-+
-//          |   |   |   +=v0062
-// b032     |   | +-+
-//          |   | | |   +=v0063
-// b072     |   | | | +-+
-//          |   | | | | +=v0000
-// b050     |   | | +-+
-//          |   | |   | +=v0320
-// b073     |   | |   +-+
-//          |   | |     +=v0384
-// b019     |   +-+
-//          |     +=v0010
-// b002   +-+
-//        | |     +=v0011
-// b020   | |   +-+
-//        | |   | |   +=v0027
-// b051   | |   | | +-+
-//        | |   | | | | +=v0059
-// b074   | |   | | | +-+
-//        | |   | | |   +=v0060
-// b033   | |   | +-+
-//        | |   |   |     +=v1472
-// b086   | |   |   |   +-+
-//        | |   |   |   | +=v1536
-// b075   | |   |   | +-+
-//        | |   |   | | | +=v1600
-// b087   | |   |   | | +-+
-//        | |   |   | |   +=v1728
-// b052   | |   |   +-+
-//        | |   |     +=v0018
-// b010   | | +-+
-//        | | | |     +=v0024
-// b053   | | | |   +-+
-//        | | | |   | | +=v0049
-// b076   | | | |   | +-+
-//        | | | |   |   +=v0050
-// b034   | | | | +-+
-//        | | | | | |   +=v0051
-// b077   | | | | | | +-+
-//        | | | | | | | +=v0052
-// b054   | | | | | +-+
-//        | | | | |   +=v0025
-// b021   | | | +-+
-//        | | |   |     +=v0055
-// b078   | | |   |   +-+
-//        | | |   |   | +=v0056
-// b055   | | |   | +-+
-//        | | |   | | | +=v0057
-// b079   | | |   | | +-+
-//        | | |   | |   +=v0058
-// b035   | | |   +-+
-//        | | |     +=v0192
-// b005   | +-+
-//        |   |     +=v1664
-// b036   |   |   +-+
-//        |   |   | |   +=v0448
-// b080   |   |   | | +-+
-//        |   |   | | | +=v0512
-// b056   |   |   | +-+
-//        |   |   |   |   +=v0704
-// b088   |   |   |   | +-+
-//        |   |   |   | | +=v0768
-// b081   |   |   |   +-+
-//        |   |   |     +=v0640
-// b022   |   | +-+
-//        |   | | |     +=v0576
-// b082   |   | | |   +-+
-//        |   | | |   | | +=v0832
-// b089   |   | | |   | +-+
-//        |   | | |   |   +=v0896
-// b057   |   | | | +-+
-//        |   | | | | |   +=v0960
-// b090   |   | | | | | +-+
-//        |   | | | | | | +=v1024
-// b083   |   | | | | +-+
-//        |   | | | |   | +=v1088
-// b091   |   | | | |   +-+
-//        |   | | | |     +=v1152
-// b037   |   | | +-+
-//        |   | |   |     +=v1216
-// b092   |   | |   |   +-+
-//        |   | |   |   | +=v1280
-// b084   |   | |   | +-+
-//        |   | |   | | | +=v1344
-// b093   |   | |   | | +-+
-//        |   | |   | |   +=v1408
-// b058   |   | |   +-+
-//        |   | |     +=v0256
-// b011   |   +-+
-//        |     +=v0002
-// b001 +-+
-//        |     +=v0003
-// b012   |   +-+
-//        |   | | +=v0128
-// b023   |   | +-+
-//        |   |   +=v0008
-// b006   | +-+
-//        | | |   +=v0009
-// b024   | | | +-+
-//        | | | | | +=v0016
-// b038   | | | | +-+
-//        | | | |   +=v0017
-// b013   | | +-+
-//        | |   +=v0004
-// b003   +-+
-//          |   +=v0005
-// b014     | +-+
-//          | | |   +=v0014
-// b039     | | | +-+
-//          | | | | +=v0015
-// b025     | | +-+
-//          | |   +=v0064
-// b007     +-+
-//            | +=v0006
-// b015       +-+
-//              +=v0007
+//	                     +=XXXXX
+//	b059               +-+
+//	                   | |     +=v1792
+//	b096               | |   +-+
+//	                   | |   | | +=v1984
+//	b100               | |   | +-+
+//	                   | |   |   +=v2048
+//	b094               | | +-+
+//	                   | | | |   +=v2112
+//	b101               | | | | +-+
+//	                   | | | | | +=v2176
+//	b097               | | | +-+
+//	                   | | |   | +=v2240
+//	b102               | | |   +-+
+//	                   | | |     +=v2304
+//	b085               | +-+
+//	                   |   |   +=v1856
+//	b098               |   | +-+
+//	                   |   | | +=v1920
+//	b095               |   +-+
+//	                   |     |   +=v2368
+//	b103               |     | +-+
+//	                   |     | | +=v2432
+//	b099               |     +-+
+//	                   |       | +=v2496
+//	b104               |       +-+
+//	                   |         +=v2560
+//	b040             +-+
+//	                 | | +=v0029
+//	b060             | +-+
+//	                 |   +=v0030
+//	b026           +-+
+//	               | |   +=v0045
+//	b061           | | +-+
+//	               | | | +=v0046
+//	b041           | +-+
+//	               |   +=v0022
+//	b016         +-+
+//	             | |   +=v0023
+//	b042         | | +-+
+//	             | | | | +=v0047
+//	b062         | | | +-+
+//	             | | |   +=v0048
+//	b027         | +-+
+//	             |   +=v0013
+//	b008       +-+
+//	           | |     +=v0020
+//	b043       | |   +-+
+//	           | |   | | +=v0033
+//	b063       | |   | +-+
+//	           | |   |   +=v0034
+//	b028       | | +-+
+//	           | | | |   +=v0035
+//	b064       | | | | +-+
+//	           | | | | | +=v0036
+//	b044       | | | +-+
+//	           | | |   | +=v0037
+//	b065       | | |   +-+
+//	           | | |     +=v0038
+//	b017       | +-+
+//	           |   |   +=v0019
+//	b045       |   | +-+
+//	           |   | | | +=v0031
+//	b066       |   | | +-+
+//	           |   | |   +=v0032
+//	b029       |   +-+
+//	           |     +=v0001
+//	b004     +-+
+//	         | |     +=v0012
+//	b030     | |   +-+
+//	         | |   | |   +=v0053
+//	b067     | |   | | +-+
+//	         | |   | | | +=v0054
+//	b046     | |   | +-+
+//	         | |   |   +=v0026
+//	b018     | | +-+
+//	         | | | |     +=v0039
+//	b068     | | | |   +-+
+//	         | | | |   | +=v0040
+//	b047     | | | | +-+
+//	         | | | | | | +=v0041
+//	b069     | | | | | +-+
+//	         | | | | |   +=v0042
+//	b031     | | | +-+
+//	         | | |   |   +=v0043
+//	b070     | | |   | +-+
+//	         | | |   | | +=v0044
+//	b048     | | |   +-+
+//	         | | |     +=v0021
+//	b009     | +-+
+//	         |   |     +=v0028
+//	b049     |   |   +-+
+//	         |   |   | | +=v0061
+//	b071     |   |   | +-+
+//	         |   |   |   +=v0062
+//	b032     |   | +-+
+//	         |   | | |   +=v0063
+//	b072     |   | | | +-+
+//	         |   | | | | +=v0000
+//	b050     |   | | +-+
+//	         |   | |   | +=v0320
+//	b073     |   | |   +-+
+//	         |   | |     +=v0384
+//	b019     |   +-+
+//	         |     +=v0010
+//	b002   +-+
+//	       | |     +=v0011
+//	b020   | |   +-+
+//	       | |   | |   +=v0027
+//	b051   | |   | | +-+
+//	       | |   | | | | +=v0059
+//	b074   | |   | | | +-+
+//	       | |   | | |   +=v0060
+//	b033   | |   | +-+
+//	       | |   |   |     +=v1472
+//	b086   | |   |   |   +-+
+//	       | |   |   |   | +=v1536
+//	b075   | |   |   | +-+
+//	       | |   |   | | | +=v1600
+//	b087   | |   |   | | +-+
+//	       | |   |   | |   +=v1728
+//	b052   | |   |   +-+
+//	       | |   |     +=v0018
+//	b010   | | +-+
+//	       | | | |     +=v0024
+//	b053   | | | |   +-+
+//	       | | | |   | | +=v0049
+//	b076   | | | |   | +-+
+//	       | | | |   |   +=v0050
+//	b034   | | | | +-+
+//	       | | | | | |   +=v0051
+//	b077   | | | | | | +-+
+//	       | | | | | | | +=v0052
+//	b054   | | | | | +-+
+//	       | | | | |   +=v0025
+//	b021   | | | +-+
+//	       | | |   |     +=v0055
+//	b078   | | |   |   +-+
+//	       | | |   |   | +=v0056
+//	b055   | | |   | +-+
+//	       | | |   | | | +=v0057
+//	b079   | | |   | | +-+
+//	       | | |   | |   +=v0058
+//	b035   | | |   +-+
+//	       | | |     +=v0192
+//	b005   | +-+
+//	       |   |     +=v1664
+//	b036   |   |   +-+
+//	       |   |   | |   +=v0448
+//	b080   |   |   | | +-+
+//	       |   |   | | | +=v0512
+//	b056   |   |   | +-+
+//	       |   |   |   |   +=v0704
+//	b088   |   |   |   | +-+
+//	       |   |   |   | | +=v0768
+//	b081   |   |   |   +-+
+//	       |   |   |     +=v0640
+//	b022   |   | +-+
+//	       |   | | |     +=v0576
+//	b082   |   | | |   +-+
+//	       |   | | |   | | +=v0832
+//	b089   |   | | |   | +-+
+//	       |   | | |   |   +=v0896
+//	b057   |   | | | +-+
+//	       |   | | | | |   +=v0960
+//	b090   |   | | | | | +-+
+//	       |   | | | | | | +=v1024
+//	b083   |   | | | | +-+
+//	       |   | | | |   | +=v1088
+//	b091   |   | | | |   +-+
+//	       |   | | | |     +=v1152
+//	b037   |   | | +-+
+//	       |   | |   |     +=v1216
+//	b092   |   | |   |   +-+
+//	       |   | |   |   | +=v1280
+//	b084   |   | |   | +-+
+//	       |   | |   | | | +=v1344
+//	b093   |   | |   | | +-+
+//	       |   | |   | |   +=v1408
+//	b058   |   | |   +-+
+//	       |   | |     +=v0256
+//	b011   |   +-+
+//	       |     +=v0002
+//	b001 +-+
+//	       |     +=v0003
+//	b012   |   +-+
+//	       |   | | +=v0128
+//	b023   |   | +-+
+//	       |   |   +=v0008
+//	b006   | +-+
+//	       | | |   +=v0009
+//	b024   | | | +-+
+//	       | | | | | +=v0016
+//	b038   | | | | +-+
+//	       | | | |   +=v0017
+//	b013   | | +-+
+//	       | |   +=v0004
+//	b003   +-+
+//	         |   +=v0005
+//	b014     | +-+
+//	         | | |   +=v0014
+//	b039     | | | +-+
+//	         | | | | +=v0015
+//	b025     | | +-+
+//	         | |   +=v0064
+//	b007     +-+
+//	           | +=v0006
+//	b015       +-+
+//	             +=v0007
 var whiteDecodeTable = [...][2]int16{
 	0:   {0, 0},
 	1:   {2, 3},
@@ -387,215 +387,215 @@
 
 // blackDecodeTable represents Tables 2 and 3 for a black run.
 //
-//                      +=XXXXX
-// b017               +-+
-//                    | |     +=v1792
-// b042               | |   +-+
-//                    | |   | | +=v1984
-// b063               | |   | +-+
-//                    | |   |   +=v2048
-// b029               | | +-+
-//                    | | | |   +=v2112
-// b064               | | | | +-+
-//                    | | | | | +=v2176
-// b043               | | | +-+
-//                    | | |   | +=v2240
-// b065               | | |   +-+
-//                    | | |     +=v2304
-// b022               | +-+
-//                    |   |   +=v1856
-// b044               |   | +-+
-//                    |   | | +=v1920
-// b030               |   +-+
-//                    |     |   +=v2368
-// b066               |     | +-+
-//                    |     | | +=v2432
-// b045               |     +-+
-//                    |       | +=v2496
-// b067               |       +-+
-//                    |         +=v2560
-// b013             +-+
-//                  | |     +=v0018
-// b031             | |   +-+
-//                  | |   | |   +=v0052
-// b068             | |   | | +-+
-//                  | |   | | | | +=v0640
-// b095             | |   | | | +-+
-//                  | |   | | |   +=v0704
-// b046             | |   | +-+
-//                  | |   |   |   +=v0768
-// b096             | |   |   | +-+
-//                  | |   |   | | +=v0832
-// b069             | |   |   +-+
-//                  | |   |     +=v0055
-// b023             | | +-+
-//                  | | | |     +=v0056
-// b070             | | | |   +-+
-//                  | | | |   | | +=v1280
-// b097             | | | |   | +-+
-//                  | | | |   |   +=v1344
-// b047             | | | | +-+
-//                  | | | | | |   +=v1408
-// b098             | | | | | | +-+
-//                  | | | | | | | +=v1472
-// b071             | | | | | +-+
-//                  | | | | |   +=v0059
-// b032             | | | +-+
-//                  | | |   |   +=v0060
-// b072             | | |   | +-+
-//                  | | |   | | | +=v1536
-// b099             | | |   | | +-+
-//                  | | |   | |   +=v1600
-// b048             | | |   +-+
-//                  | | |     +=v0024
-// b018             | +-+
-//                  |   |     +=v0025
-// b049             |   |   +-+
-//                  |   |   | |   +=v1664
-// b100             |   |   | | +-+
-//                  |   |   | | | +=v1728
-// b073             |   |   | +-+
-//                  |   |   |   +=v0320
-// b033             |   | +-+
-//                  |   | | |   +=v0384
-// b074             |   | | | +-+
-//                  |   | | | | +=v0448
-// b050             |   | | +-+
-//                  |   | |   |   +=v0512
-// b101             |   | |   | +-+
-//                  |   | |   | | +=v0576
-// b075             |   | |   +-+
-//                  |   | |     +=v0053
-// b024             |   +-+
-//                  |     |     +=v0054
-// b076             |     |   +-+
-//                  |     |   | | +=v0896
-// b102             |     |   | +-+
-//                  |     |   |   +=v0960
-// b051             |     | +-+
-//                  |     | | |   +=v1024
-// b103             |     | | | +-+
-//                  |     | | | | +=v1088
-// b077             |     | | +-+
-//                  |     | |   | +=v1152
-// b104             |     | |   +-+
-//                  |     | |     +=v1216
-// b034             |     +-+
-//                  |       +=v0064
-// b010           +-+
-//                | |   +=v0013
-// b019           | | +-+
-//                | | | |     +=v0023
-// b052           | | | |   +-+
-//                | | | |   | | +=v0050
-// b078           | | | |   | +-+
-//                | | | |   |   +=v0051
-// b035           | | | | +-+
-//                | | | | | |   +=v0044
-// b079           | | | | | | +-+
-//                | | | | | | | +=v0045
-// b053           | | | | | +-+
-//                | | | | |   | +=v0046
-// b080           | | | | |   +-+
-//                | | | | |     +=v0047
-// b025           | | | +-+
-//                | | |   |     +=v0057
-// b081           | | |   |   +-+
-//                | | |   |   | +=v0058
-// b054           | | |   | +-+
-//                | | |   | | | +=v0061
-// b082           | | |   | | +-+
-//                | | |   | |   +=v0256
-// b036           | | |   +-+
-//                | | |     +=v0016
-// b014           | +-+
-//                |   |     +=v0017
-// b037           |   |   +-+
-//                |   |   | |   +=v0048
-// b083           |   |   | | +-+
-//                |   |   | | | +=v0049
-// b055           |   |   | +-+
-//                |   |   |   | +=v0062
-// b084           |   |   |   +-+
-//                |   |   |     +=v0063
-// b026           |   | +-+
-//                |   | | |     +=v0030
-// b085           |   | | |   +-+
-//                |   | | |   | +=v0031
-// b056           |   | | | +-+
-//                |   | | | | | +=v0032
-// b086           |   | | | | +-+
-//                |   | | | |   +=v0033
-// b038           |   | | +-+
-//                |   | |   |   +=v0040
-// b087           |   | |   | +-+
-//                |   | |   | | +=v0041
-// b057           |   | |   +-+
-//                |   | |     +=v0022
-// b020           |   +-+
-//                |     +=v0014
-// b008         +-+
-//              | |   +=v0010
-// b015         | | +-+
-//              | | | +=v0011
-// b011         | +-+
-//              |   |     +=v0015
-// b027         |   |   +-+
-//              |   |   | |     +=v0128
-// b088         |   |   | |   +-+
-//              |   |   | |   | +=v0192
-// b058         |   |   | | +-+
-//              |   |   | | | | +=v0026
-// b089         |   |   | | | +-+
-//              |   |   | | |   +=v0027
-// b039         |   |   | +-+
-//              |   |   |   |   +=v0028
-// b090         |   |   |   | +-+
-//              |   |   |   | | +=v0029
-// b059         |   |   |   +-+
-//              |   |   |     +=v0019
-// b021         |   | +-+
-//              |   | | |     +=v0020
-// b060         |   | | |   +-+
-//              |   | | |   | | +=v0034
-// b091         |   | | |   | +-+
-//              |   | | |   |   +=v0035
-// b040         |   | | | +-+
-//              |   | | | | |   +=v0036
-// b092         |   | | | | | +-+
-//              |   | | | | | | +=v0037
-// b061         |   | | | | +-+
-//              |   | | | |   | +=v0038
-// b093         |   | | | |   +-+
-//              |   | | | |     +=v0039
-// b028         |   | | +-+
-//              |   | |   |   +=v0021
-// b062         |   | |   | +-+
-//              |   | |   | | | +=v0042
-// b094         |   | |   | | +-+
-//              |   | |   | |   +=v0043
-// b041         |   | |   +-+
-//              |   | |     +=v0000
-// b016         |   +-+
-//              |     +=v0012
-// b006       +-+
-//            | |   +=v0009
-// b012       | | +-+
-//            | | | +=v0008
-// b009       | +-+
-//            |   +=v0007
-// b004     +-+
-//          | | +=v0006
-// b007     | +-+
-//          |   +=v0005
-// b002   +-+
-//        | | +=v0001
-// b005   | +-+
-//        |   +=v0004
-// b001 +-+
-//        | +=v0003
-// b003   +-+
-//          +=v0002
+//	                     +=XXXXX
+//	b017               +-+
+//	                   | |     +=v1792
+//	b042               | |   +-+
+//	                   | |   | | +=v1984
+//	b063               | |   | +-+
+//	                   | |   |   +=v2048
+//	b029               | | +-+
+//	                   | | | |   +=v2112
+//	b064               | | | | +-+
+//	                   | | | | | +=v2176
+//	b043               | | | +-+
+//	                   | | |   | +=v2240
+//	b065               | | |   +-+
+//	                   | | |     +=v2304
+//	b022               | +-+
+//	                   |   |   +=v1856
+//	b044               |   | +-+
+//	                   |   | | +=v1920
+//	b030               |   +-+
+//	                   |     |   +=v2368
+//	b066               |     | +-+
+//	                   |     | | +=v2432
+//	b045               |     +-+
+//	                   |       | +=v2496
+//	b067               |       +-+
+//	                   |         +=v2560
+//	b013             +-+
+//	                 | |     +=v0018
+//	b031             | |   +-+
+//	                 | |   | |   +=v0052
+//	b068             | |   | | +-+
+//	                 | |   | | | | +=v0640
+//	b095             | |   | | | +-+
+//	                 | |   | | |   +=v0704
+//	b046             | |   | +-+
+//	                 | |   |   |   +=v0768
+//	b096             | |   |   | +-+
+//	                 | |   |   | | +=v0832
+//	b069             | |   |   +-+
+//	                 | |   |     +=v0055
+//	b023             | | +-+
+//	                 | | | |     +=v0056
+//	b070             | | | |   +-+
+//	                 | | | |   | | +=v1280
+//	b097             | | | |   | +-+
+//	                 | | | |   |   +=v1344
+//	b047             | | | | +-+
+//	                 | | | | | |   +=v1408
+//	b098             | | | | | | +-+
+//	                 | | | | | | | +=v1472
+//	b071             | | | | | +-+
+//	                 | | | | |   +=v0059
+//	b032             | | | +-+
+//	                 | | |   |   +=v0060
+//	b072             | | |   | +-+
+//	                 | | |   | | | +=v1536
+//	b099             | | |   | | +-+
+//	                 | | |   | |   +=v1600
+//	b048             | | |   +-+
+//	                 | | |     +=v0024
+//	b018             | +-+
+//	                 |   |     +=v0025
+//	b049             |   |   +-+
+//	                 |   |   | |   +=v1664
+//	b100             |   |   | | +-+
+//	                 |   |   | | | +=v1728
+//	b073             |   |   | +-+
+//	                 |   |   |   +=v0320
+//	b033             |   | +-+
+//	                 |   | | |   +=v0384
+//	b074             |   | | | +-+
+//	                 |   | | | | +=v0448
+//	b050             |   | | +-+
+//	                 |   | |   |   +=v0512
+//	b101             |   | |   | +-+
+//	                 |   | |   | | +=v0576
+//	b075             |   | |   +-+
+//	                 |   | |     +=v0053
+//	b024             |   +-+
+//	                 |     |     +=v0054
+//	b076             |     |   +-+
+//	                 |     |   | | +=v0896
+//	b102             |     |   | +-+
+//	                 |     |   |   +=v0960
+//	b051             |     | +-+
+//	                 |     | | |   +=v1024
+//	b103             |     | | | +-+
+//	                 |     | | | | +=v1088
+//	b077             |     | | +-+
+//	                 |     | |   | +=v1152
+//	b104             |     | |   +-+
+//	                 |     | |     +=v1216
+//	b034             |     +-+
+//	                 |       +=v0064
+//	b010           +-+
+//	               | |   +=v0013
+//	b019           | | +-+
+//	               | | | |     +=v0023
+//	b052           | | | |   +-+
+//	               | | | |   | | +=v0050
+//	b078           | | | |   | +-+
+//	               | | | |   |   +=v0051
+//	b035           | | | | +-+
+//	               | | | | | |   +=v0044
+//	b079           | | | | | | +-+
+//	               | | | | | | | +=v0045
+//	b053           | | | | | +-+
+//	               | | | | |   | +=v0046
+//	b080           | | | | |   +-+
+//	               | | | | |     +=v0047
+//	b025           | | | +-+
+//	               | | |   |     +=v0057
+//	b081           | | |   |   +-+
+//	               | | |   |   | +=v0058
+//	b054           | | |   | +-+
+//	               | | |   | | | +=v0061
+//	b082           | | |   | | +-+
+//	               | | |   | |   +=v0256
+//	b036           | | |   +-+
+//	               | | |     +=v0016
+//	b014           | +-+
+//	               |   |     +=v0017
+//	b037           |   |   +-+
+//	               |   |   | |   +=v0048
+//	b083           |   |   | | +-+
+//	               |   |   | | | +=v0049
+//	b055           |   |   | +-+
+//	               |   |   |   | +=v0062
+//	b084           |   |   |   +-+
+//	               |   |   |     +=v0063
+//	b026           |   | +-+
+//	               |   | | |     +=v0030
+//	b085           |   | | |   +-+
+//	               |   | | |   | +=v0031
+//	b056           |   | | | +-+
+//	               |   | | | | | +=v0032
+//	b086           |   | | | | +-+
+//	               |   | | | |   +=v0033
+//	b038           |   | | +-+
+//	               |   | |   |   +=v0040
+//	b087           |   | |   | +-+
+//	               |   | |   | | +=v0041
+//	b057           |   | |   +-+
+//	               |   | |     +=v0022
+//	b020           |   +-+
+//	               |     +=v0014
+//	b008         +-+
+//	             | |   +=v0010
+//	b015         | | +-+
+//	             | | | +=v0011
+//	b011         | +-+
+//	             |   |     +=v0015
+//	b027         |   |   +-+
+//	             |   |   | |     +=v0128
+//	b088         |   |   | |   +-+
+//	             |   |   | |   | +=v0192
+//	b058         |   |   | | +-+
+//	             |   |   | | | | +=v0026
+//	b089         |   |   | | | +-+
+//	             |   |   | | |   +=v0027
+//	b039         |   |   | +-+
+//	             |   |   |   |   +=v0028
+//	b090         |   |   |   | +-+
+//	             |   |   |   | | +=v0029
+//	b059         |   |   |   +-+
+//	             |   |   |     +=v0019
+//	b021         |   | +-+
+//	             |   | | |     +=v0020
+//	b060         |   | | |   +-+
+//	             |   | | |   | | +=v0034
+//	b091         |   | | |   | +-+
+//	             |   | | |   |   +=v0035
+//	b040         |   | | | +-+
+//	             |   | | | | |   +=v0036
+//	b092         |   | | | | | +-+
+//	             |   | | | | | | +=v0037
+//	b061         |   | | | | +-+
+//	             |   | | | |   | +=v0038
+//	b093         |   | | | |   +-+
+//	             |   | | | |     +=v0039
+//	b028         |   | | +-+
+//	             |   | |   |   +=v0021
+//	b062         |   | |   | +-+
+//	             |   | |   | | | +=v0042
+//	b094         |   | |   | | +-+
+//	             |   | |   | |   +=v0043
+//	b041         |   | |   +-+
+//	             |   | |     +=v0000
+//	b016         |   +-+
+//	             |     +=v0012
+//	b006       +-+
+//	           | |   +=v0009
+//	b012       | | +-+
+//	           | | | +=v0008
+//	b009       | +-+
+//	           |   +=v0007
+//	b004     +-+
+//	         | | +=v0006
+//	b007     | +-+
+//	         |   +=v0005
+//	b002   +-+
+//	       | | +=v0001
+//	b005   | +-+
+//	       |   +=v0004
+//	b001 +-+
+//	       | +=v0003
+//	b003   +-+
+//	         +=v0002
 var blackDecodeTable = [...][2]int16{
 	0:   {0, 0},
 	1:   {2, 3},
diff --git a/cmd/webp-manual-test/main.go b/cmd/webp-manual-test/main.go
index acb2815..824b944 100644
--- a/cmd/webp-manual-test/main.go
+++ b/cmd/webp-manual-test/main.go
@@ -2,8 +2,9 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build ignore
 // +build ignore
-//
+
 // This build tag means that "go install golang.org/x/image/..." doesn't
 // install this manual test. Use "go run main.go" to explicitly run it.
 
diff --git a/draw/scale.go b/draw/scale.go
index 00121a1..ba1bdf3 100644
--- a/draw/scale.go
+++ b/draw/scale.go
@@ -46,8 +46,8 @@
 //
 // For example, if m is the matrix
 //
-// 	m00 m01 m02
-// 	m10 m11 m12
+//	m00 m01 m02
+//	m10 m11 m12
 //
 // then the src-space point (sx, sy) maps to the dst-space point
 // (m00*sx + m01*sy + m02, m10*sx + m11*sy + m12).
@@ -98,9 +98,9 @@
 // have a 1:1 correspondence.
 //
 // Of the interpolators provided by this package:
-//	- NearestNeighbor is fast but usually looks worst.
-//	- CatmullRom is slow but usually looks best.
-//	- ApproxBiLinear has reasonable speed and quality.
+//   - NearestNeighbor is fast but usually looks worst.
+//   - CatmullRom is slow but usually looks best.
+//   - ApproxBiLinear has reasonable speed and quality.
 //
 // The time taken depends on the size of dr. For kernel interpolators, the
 // speed also depends on the size of sr, and so are often slower than
diff --git a/example/font/main.go b/example/font/main.go
index 78fd112..aee01a4 100644
--- a/example/font/main.go
+++ b/example/font/main.go
@@ -2,8 +2,9 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build example
 // +build example
-//
+
 // This build tag means that "go install golang.org/x/image/..." doesn't
 // install this example program. Use "go run main.go" to run it or "go install
 // -tags=example" to install it.
diff --git a/font/gofont/gen.go b/font/gofont/gen.go
index c7cf2d8..bb867a4 100644
--- a/font/gofont/gen.go
+++ b/font/gofont/gen.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build ignore
 // +build ignore
 
 package main
diff --git a/font/sfnt/gpos.go b/font/sfnt/gpos.go
index 5f4b765..e0e339c 100644
--- a/font/sfnt/gpos.go
+++ b/font/sfnt/gpos.go
@@ -14,7 +14,7 @@
 	hexFeatureKern = uint32(0x6b65726e) // kern
 )
 
-//kernFunc returns the unscaled kerning value for kerning pair a+b.
+// kernFunc returns the unscaled kerning value for kerning pair a+b.
 // Returns ErrNotFound if no kerning is specified for this pair.
 type kernFunc func(a, b GlyphIndex) (int16, error)
 
diff --git a/font/sfnt/proprietary_test.go b/font/sfnt/proprietary_test.go
index 66f7d4b..15dde75 100644
--- a/font/sfnt/proprietary_test.go
+++ b/font/sfnt/proprietary_test.go
@@ -599,9 +599,9 @@
 
 // proprietaryGlyphTestCases hold a sample of each font's glyph vectors. The
 // numerical values can be verified by running the ttx tool, remembering that:
-//	- for PostScript glyphs, ttx coordinates are relative.
-//	- for TrueType glyphs, ttx coordinates are absolute, and consecutive
-//	  off-curve points implies an on-curve point at the midpoint.
+//   - for PostScript glyphs, ttx coordinates are relative.
+//   - for TrueType glyphs, ttx coordinates are absolute, and consecutive
+//     off-curve points implies an on-curve point at the midpoint.
 var proprietaryGlyphTestCases = map[string]map[rune][]Segment{
 	"adobe/SourceHanSansSC-Regular.otf": {
 		'!': {
diff --git a/tiff/lzw/reader.go b/tiff/lzw/reader.go
index 1930357..1ccf585 100644
--- a/tiff/lzw/reader.go
+++ b/tiff/lzw/reader.go
@@ -3,8 +3,8 @@
 // license that can be found in the LICENSE file.
 
 // Package lzw implements the Lempel-Ziv-Welch compressed data format,
-// described in T. A. Welch, ``A Technique for High-Performance Data
-// Compression'', Computer, 17(6) (June 1984), pp 8-19.
+// described in T. A. Welch, “A Technique for High-Performance Data
+// Compression”, Computer, 17(6) (June 1984), pp 8-19.
 //
 // In particular, it implements LZW as used by the TIFF file format, including
 // an "off by one" algorithmic difference when compared to standard LZW.
diff --git a/vector/acc_test.go b/vector/acc_test.go
index 898bd8a..439c489 100644
--- a/vector/acc_test.go
+++ b/vector/acc_test.go
@@ -288,15 +288,19 @@
 // "wrong". We're testing that we cope with them being different.
 //
 // On GOARCH=amd64, printing x and y gives:
-//   0.0142602495543672
-//   0.014260249212384224
+//
+//	0.0142602495543672
+//	0.014260249212384224
 //
 // On GOARCH=wasm,  printing x and y gives:
-//   0.0142602495543672
-//   0.0142602495543672
+//
+//	0.0142602495543672
+//	0.0142602495543672
 //
 // The infinitely precise (mathematical) answer is:
-//   0.014260249554367201426024955436720142602495543672recurring...
+//
+//	0.014260249554367201426024955436720142602495543672recurring...
+//
 // See https://play.golang.org/p/RxzKSdD_suE
 //
 // This test establishes a lower bound on approxEquals' tolerance constant.
diff --git a/vector/raster_fixed.go b/vector/raster_fixed.go
index 5b0fe7a..12330da 100644
--- a/vector/raster_fixed.go
+++ b/vector/raster_fixed.go
@@ -32,8 +32,11 @@
 // The Rasterizer's bufU32 field, nominally of type []uint32 (since that slice
 // is also used by other code), can be thought of as a []int2ϕ during the
 // fixedLineTo method. Lines of code that are actually like:
+//
 //	buf[i] += uint32(etc) // buf has type []uint32.
+//
 // can be thought of as
+//
 //	buf[i] += int2ϕ(etc)  // buf has type []int2ϕ.
 type int2ϕ int32