git-gui: Fix applying a line when all following lines are deletions
tree3a277ad02d60707d4588980c113e3c67a19128d2
-rw-r--r-- 84 .gitattributes
-rw-r--r-- 97 .gitignore
-rwxr-xr-x 1813 GIT-VERSION-GEN
-rw-r--r-- 11623 Makefile
-rwxr-xr-x 1289 git-gui--askpass
-rwxr-xr-x 87514 git-gui.sh
drwxr-xr-x - lib
drwxr-xr-x - macosx
drwxr-xr-x - po
drwxr-xr-x - windows