gitk: When a commit contains a note, mark it with a yellow box
gitk: When a commit contains a note, mark it with a yellow box

It is desirable to see at a glance which commits do contain notes.
Therefore mark them with a yellow rectangle.

That can be suppressed with `gitk --no-notes`.

Signed-off-by: Raphael Zimmerer <e43f2979d557cee82ead33b6fc13707814028e7c@rdrz.de>
Signed-off-by: Paul Mackerras <19a0ba370c443ba08d20b5061586430ab449ee8c@samba.org>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git