git-gui: Rename quitting global to is_quitting.

This is a boolean value; naming it as such is a good thing.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
1 file changed
tree: 8b426b9a0fe70c5e6a0f085060b795a2e3ffc60e
  1. git-gui
  2. TODO