Add "gofmt" from Go 1.3.3

Signed-off-by: Andrew "Tianon" Page <admwiggin@gmail.com>

api/client/utils.go

@@ -260,10 +260,7 @@ func (cli *DockerCli) monitorTtySize(id string, isExec bool) error {
 	sigchan := make(chan os.Signal, 1)
 	gosignal.Notify(sigchan, signal.SIGWINCH)
 	go func() {
-		// This tmp := range..., _ = tmp workaround is needed to
-		// suppress gofmt warnings while still preserve go1.3 compatibility
-		for tmp := range sigchan {
-			_ = tmp
+		for _ := range sigchan {
 			cli.resizeTty(id, isExec)
 		}
 	}()