build/constraint: update doc to mention a feature added in Go 1.17

The pkg documentation mentions that the "//go:build" syntax "will be"
added in Go 1.17. In fact, it has been added in that Go release, so the
documentation can now be updated.

Change-Id: I72f24063c3be62d97ca78bf724d56599f5f19460
GitHub-Last-Rev: 4371886f6ce9f2c2a370df047a5baa1f122c681f
GitHub-Pull-Request: golang/go#53647
Reviewed-on: https://go-review.googlesource.com/c/go/+/415774
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Benny Siegert <bsiegert@gmail.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>

diff --git a/src/go/build/constraint/expr.go b/src/go/build/constraint/expr.go
index d64eead65491bcc86d86e234db946ecdc50207ba..505cbffa4c5f182cfe88d0c9a9823df1520210eb 100644 (file)
--- a/src/go/build/constraint/expr.go
+++ b/src/go/build/constraint/expr.go
@@ -5,9 +5,7 @@
 // Package constraint implements parsing and evaluation of build constraint lines.
 // See https://golang.org/cmd/go/#hdr-Build_constraints for documentation about build constraints themselves.
 //
-// This package parses both the original “// +build” syntax and the “//go:build” syntax that will be added in Go 1.17.
-// The parser is being included in Go 1.16 to allow tools that need to process Go 1.17 source code
-// to still be built against the Go 1.16 release.
+// This package parses both the original “// +build” syntax and the “//go:build” syntax that was added in Go 1.17.
 // See https://golang.org/design/draft-gobuild for details about the “//go:build” syntax.
 package constraint