codereview: handle file patterns better

If a file pattern is given and matches files that look
like they need to be hg added or hg removed, offer to do so.

If a file pattern is given and matches files in another CL, warn.

If a file pattern doesn't match anything, point that out.

Vet first line of CL description.

Fixes issue 972.

R=adg, niemeyer
CC=bradfitzgo, golang-dev
http://codereview.appspot.com/4099042

1 files changed, 1 insertions, 0 deletions

diff --git a/.hgignore b/.hgignore
index 2d037467a..283956481 100644
--- a/.hgignore
+++ b/.hgignore
@@ -11,6 +11,7 @@ syntax:glob
 [568a].out
 *~
 *.orig
+*.rej
 *.exe
 .*.swp
 core