git-gui: Allow forcing display encoding for diffs using a submenu.
-rwxr-xr-x 1813 GIT-VERSION-GEN
-rw-r--r-- 11322 Makefile
-rwxr-xr-x 82537 git-gui.sh
drwxr-xr-x - lib
drwxr-xr-x - macosx
drwxr-xr-x - po
drwxr-xr-x - windows