Make Code-Review+2 label sticky

This saves time by allowing people to submit after addressing
minor comments from the review that generated a +2 instead of
having to wait for another approval.  The external Go repo had
the same setting enabled already.

Suggested-by: Rob Pike <r@google.com>
1 file changed
tree: 078005531b72e92bbd7dda990ac422afd120667d
  1. groups
  2. project.config