all: fix a few function names on comments

Change-Id: Ib3eb9ff469c3ecb8141f992049f4342cf3696b30
Reviewed-on: https://go-review.googlesource.com/c/mobile/+/442095
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Joedian Reid <joedian@golang.org>

exp/audio/al/al.go

diff --git a/exp/audio/al/al.go b/exp/audio/al/al.go
index b2396a5..b02cbb7 100644
--- a/exp/audio/al/al.go
+++ b/exp/audio/al/al.go
@@ -396,12 +396,12 @@
 	alGetListenerfv(param, v)
 }
 
-// GetListenerf sets the float32 value for the listener parameter.
+// SetListenerf sets the float32 value for the listener parameter.
 func SetListenerf(param int, v float32) {
 	alListenerf(param, v)
 }
 
-// GetListenerf sets the float32 vector value of the listener parameter.
+// SetListenerfv sets the float32 vector value of the listener parameter.
 func SetListenerfv(param int, v []float32) {
 	alListenerfv(param, v)
 }

internal/importers/objc/objc.go

diff --git a/internal/importers/objc/objc.go b/internal/importers/objc/objc.go
index 14c8386..df2b257 100644
--- a/internal/importers/objc/objc.go
+++ b/internal/importers/objc/objc.go
@@ -291,7 +291,7 @@
 	}
 }
 
-// mangleMethodsNames assigns unique Go names to ObjC methods. If a method name is unique
+// mangleMethodNames assigns unique Go names to ObjC methods. If a method name is unique
 // within the same method list, its name is used with its first letter in upper case.
 // Multiple methods with the same name have their full signature appended, with : removed.
 func mangleMethodNames(allFuncs []*Func) {