go/build: update for //go:build lines

Look for //go:build ignore, not // +build ignore, in deps_test.go.

For #41184.

Change-Id: Iba8617230aa620223e2bc170f18d0c54557318c4
Reviewed-on: https://go-review.googlesource.com/c/go/+/359315
Trust: Russ Cox <rsc@golang.org>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>

diff --git a/src/go/build/deps_test.go b/src/go/build/deps_test.go
index 64f084152a07c73879c4c3edaad925c014d5acf7..ab85c99602655d156684665d055c98c6e9ce90cd 100644 (file)
--- a/src/go/build/deps_test.go
+++ b/src/go/build/deps_test.go
@@ -621,7 +621,7 @@ func TestDependencies(t *testing.T) {
        }
 }
 
-var buildIgnore = []byte("\n// +build ignore")
+var buildIgnore = []byte("\n//go:build ignore")
 
 func findImports(pkg string) ([]string, error) {
        vpkg := pkg