x/talks/2014/readability: fix build.

LGTM=adg
R=golang-codereviews, adg
CC=golang-codereviews
https://golang.org/cl/182490043
diff --git a/2014/readability/close-cond-bad.go b/2014/readability/close-cond-bad.go
index f7d6774..32b0dc9 100644
--- a/2014/readability/close-cond-bad.go
+++ b/2014/readability/close-cond-bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 type Stream struct {
 	// some fields
diff --git a/2014/readability/close-cond-good.go b/2014/readability/close-cond-good.go
index f4f7c6d..362395a 100644
--- a/2014/readability/close-cond-good.go
+++ b/2014/readability/close-cond-good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 type Stream struct {
 	// some fields
diff --git a/2014/readability/err_close_write_bad.go b/2014/readability/err_close_write_bad.go
index 733617a..563a9a4 100644
--- a/2014/readability/err_close_write_bad.go
+++ b/2014/readability/err_close_write_bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 func run() error {
diff --git a/2014/readability/err_close_write_good.go b/2014/readability/err_close_write_good.go
index 26412dc..a5859ce 100644
--- a/2014/readability/err_close_write_good.go
+++ b/2014/readability/err_close_write_good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 func run() (err error) {
diff --git a/2014/readability/err_regexp_bad.go b/2014/readability/err_regexp_bad.go
index 8c0d9f2..021481a 100644
--- a/2014/readability/err_regexp_bad.go
+++ b/2014/readability/err_regexp_bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import "regex" // OMIT
diff --git a/2014/readability/err_regexp_good.go b/2014/readability/err_regexp_good.go
index de3b609..fd34e25 100644
--- a/2014/readability/err_regexp_good.go
+++ b/2014/readability/err_regexp_good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import "regex" // OMIT
diff --git a/2014/readability/example_test.go b/2014/readability/example_test.go
index 7c960ca..ba50efa 100644
--- a/2014/readability/example_test.go
+++ b/2014/readability/example_test.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package binary // OMIT
 
 func ExampleWrite() {
diff --git a/2014/readability/if-else-bad.go b/2014/readability/if-else-bad.go
index f3a3f3b..c0f862f 100644
--- a/2014/readability/if-else-bad.go
+++ b/2014/readability/if-else-bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 func sample() { // OMIT
diff --git a/2014/readability/if-else-good.go b/2014/readability/if-else-good.go
index e01b56e..cad9f22 100644
--- a/2014/readability/if-else-good.go
+++ b/2014/readability/if-else-good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 func sample() { // OMIT
diff --git a/2014/readability/if-switch-bad.go b/2014/readability/if-switch-bad.go
index 01235d8..e6f99fb 100644
--- a/2014/readability/if-switch-bad.go
+++ b/2014/readability/if-switch-bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 func BrowserHeightBucket(s *session.Event) string {
diff --git a/2014/readability/if-switch-good.go b/2014/readability/if-switch-good.go
index 1a8f682..64abe17 100644
--- a/2014/readability/if-switch-good.go
+++ b/2014/readability/if-switch-good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 func BrowserHeightBucket(s *session.Event) string {
diff --git a/2014/readability/implement-interface-bad.go b/2014/readability/implement-interface-bad.go
index 00d5b8d..375de27 100644
--- a/2014/readability/implement-interface-bad.go
+++ b/2014/readability/implement-interface-bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import "scan" // OMIT
diff --git a/2014/readability/implement-interface-good.go b/2014/readability/implement-interface-good.go
index 0feee09..93c8970 100644
--- a/2014/readability/implement-interface-good.go
+++ b/2014/readability/implement-interface-good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import "scan" // OMIT
diff --git a/2014/readability/in-band-error-client.go b/2014/readability/in-band-error-client.go
index 2c12028..b2e13fc 100644
--- a/2014/readability/in-band-error-client.go
+++ b/2014/readability/in-band-error-client.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package client // OMIT
 
 func proc(it Iterator) (ret time.Duration) {
diff --git a/2014/readability/in-band-error.go b/2014/readability/in-band-error.go
index 21d52af..2545e48 100644
--- a/2014/readability/in-band-error.go
+++ b/2014/readability/in-band-error.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import ( // OMIT
diff --git a/2014/readability/long-line-fold.go b/2014/readability/long-line-fold.go
index 2ea15e0..af53f63 100644
--- a/2014/readability/long-line-fold.go
+++ b/2014/readability/long-line-fold.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sampling
 
 import (
diff --git a/2014/readability/long-line-nofold.go b/2014/readability/long-line-nofold.go
index e0bfd0a..a13a7e5 100644
--- a/2014/readability/long-line-nofold.go
+++ b/2014/readability/long-line-nofold.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sampling
 
 import (
diff --git a/2014/readability/long-line-short.go b/2014/readability/long-line-short.go
index 4440369..376445f 100644
--- a/2014/readability/long-line-short.go
+++ b/2014/readability/long-line-short.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sampling
 
 import (
diff --git a/2014/readability/nil_error.go b/2014/readability/nil_error.go
index 71f64ed..352e39c 100644
--- a/2014/readability/nil_error.go
+++ b/2014/readability/nil_error.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package main // OMIT
 
 import "log"
diff --git a/2014/readability/nil_interface_en.go b/2014/readability/nil_interface_en.go
index 245515e..b3bde3b 100644
--- a/2014/readability/nil_interface_en.go
+++ b/2014/readability/nil_interface_en.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package main // OMIT
 
 import "fmt"
diff --git a/2014/readability/reflect-bad.go b/2014/readability/reflect-bad.go
index 6513e84..f7f11f6 100644
--- a/2014/readability/reflect-bad.go
+++ b/2014/readability/reflect-bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 type Layers struct {
diff --git a/2014/readability/reflect-good.go b/2014/readability/reflect-good.go
index 2010a2c..ad762b5 100644
--- a/2014/readability/reflect-good.go
+++ b/2014/readability/reflect-good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 type LayerExperiment struct{ Layer, Experiment string } // HL
diff --git a/2014/readability/resthandler-fix2.go b/2014/readability/resthandler-fix2.go
index 29177b7..69d62bb 100644
--- a/2014/readability/resthandler-fix2.go
+++ b/2014/readability/resthandler-fix2.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package resthandler // OMIT
 
 func finishStatus(r Result, complete bool) int {
diff --git a/2014/readability/resthandler.go b/2014/readability/resthandler.go
index e4b97dd..c274484 100644
--- a/2014/readability/resthandler.go
+++ b/2014/readability/resthandler.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package resthandler // OMIT
 
 func (h *RESTHandler) finishReq(op *Operation, req *http.Request, w http.ResponseWriter) {
diff --git a/2014/readability/struct-field-bad.go b/2014/readability/struct-field-bad.go
index fd3306e..319cb66 100644
--- a/2014/readability/struct-field-bad.go
+++ b/2014/readability/struct-field-bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 type Modifier struct {
diff --git a/2014/readability/struct-field-good.go b/2014/readability/struct-field-good.go
index 7cab133..eb71c88 100644
--- a/2014/readability/struct-field-good.go
+++ b/2014/readability/struct-field-good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 type Modifier struct {
diff --git a/2014/readability/test-pattern_en.go b/2014/readability/test-pattern_en.go
index 5915d9e..4e70184 100644
--- a/2014/readability/test-pattern_en.go
+++ b/2014/readability/test-pattern_en.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 func TestSample(t *testing.T) { // OMIT
diff --git a/2014/readability/time_duration_bad.go b/2014/readability/time_duration_bad.go
index 4db3c24..c872eef 100644
--- a/2014/readability/time_duration_bad.go
+++ b/2014/readability/time_duration_bad.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 var rpcTimeoutSecs = 30 // Thirty seconds  // HL
diff --git a/2014/readability/time_duration_bad1.go b/2014/readability/time_duration_bad1.go
index d003ca4..90c87f1 100644
--- a/2014/readability/time_duration_bad1.go
+++ b/2014/readability/time_duration_bad1.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import "time" // OMIT
diff --git a/2014/readability/time_duration_bad2.go b/2014/readability/time_duration_bad2.go
index 620edb2..82aa9c3 100644
--- a/2014/readability/time_duration_bad2.go
+++ b/2014/readability/time_duration_bad2.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import "time" // OMIT
diff --git a/2014/readability/time_duration_good.go b/2014/readability/time_duration_good.go
index b99cd1d..22ed8a3 100644
--- a/2014/readability/time_duration_good.go
+++ b/2014/readability/time_duration_good.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import "time" // OMIT
diff --git a/2014/readability/val-and-error.go b/2014/readability/val-and-error.go
index f6ddc01..d3106d7 100644
--- a/2014/readability/val-and-error.go
+++ b/2014/readability/val-and-error.go
@@ -1,3 +1,5 @@
+// +build OMIT
+
 package sample // OMIT
 
 import ( // OMIT