Index: sdk/lib/_internal/pub/bin/pub.dart |
diff --git a/sdk/lib/_internal/pub/bin/pub.dart b/sdk/lib/_internal/pub/bin/pub.dart |
index ca88d38d97c0184a46ef0743d9a29212c7ac5ffa..e19d9a03f02bc669d6f033c4472a3e2e333faa0c 100644 |
--- a/sdk/lib/_internal/pub/bin/pub.dart |
+++ b/sdk/lib/_internal/pub/bin/pub.dart |
@@ -122,7 +122,7 @@ ArgParser initArgParser() { |
/// an error message and exits. Completes when the validation is done. |
Future validatePlatform() { |
return new Future.sync(() { |
- if (Platform.operatingSystem != 'windows') return; |
+ if (Platform.operatingSystem != 'windows') return null; |
return runProcess('ver', []).then((result) { |
if (result.stdout.join('\n').contains('XP')) { |