git-gui: fix exception when trying to stage with empty file list
treec0f3cbb3805d8a732b241ce0b51b34573402929b
-rw-r--r-- 170 .gitattributes
-rw-r--r-- 97 .gitignore
-rwxr-xr-x 1813 GIT-VERSION-GEN
-rw-r--r-- 11731 Makefile
-rwxr-xr-x 1372 git-gui--askpass
-rwxr-xr-x 101876 git-gui.sh
drwxr-xr-x - lib
drwxr-xr-x - macosx
drwxr-xr-x - po
drwxr-xr-x - windows