git-codereview: skip TestSubmitInteractive on windows (fixes build)

Updates golang/go#13406

Change-Id: Iadc8586253e794947f5048676d317f55bd1d6b62
Reviewed-on: https://go-review.googlesource.com/18557
Reviewed-by: Austin Clements <austin@google.com>
diff --git a/git-codereview/submit_test.go b/git-codereview/submit_test.go
index 02c8a12..ed6ddc2 100644
--- a/git-codereview/submit_test.go
+++ b/git-codereview/submit_test.go
@@ -6,6 +6,7 @@
 
 import (
 	"os"
+	"runtime"
 	"strings"
 	"testing"
 )
@@ -177,6 +178,10 @@
 }
 
 func TestSubmitInteractive(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("see golang.org/issue/13406")
+	}
+
 	gt := newGitTest(t)
 	defer gt.done()