git-gui: Fix semi-working shortcuts for unstage and revert

Make Ctrl+U for unstaging and Ctrl+J for reverting selection behave
more like Ctrl+T for adding.

They were working only when one area was focused (diff or commit message),
now they should work everywhere.

Acked-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Vitaly _Vi Shukela <vi0oss@gmail.com>
Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>
1 file changed