gitk: Do not depend on Cygwin's "kill" command on Windows
tree982694665b86973924aa63a5044c73f40c53f300
-rw-r--r-- 27 .gitignore
-rw-r--r-- 2158 Makefile
-rwxr-xr-x 346045 gitk
drwxr-xr-x - po