build.sh: use git-show instead of git-show-ref to get the commit id
treef9a5b1926ef5a07a74324f47ee30c91334d50779
drwxr-xr-x - activity
drwxr-xr-x - background
-rwxr-xr-x 1978 build.sh
drwxr-xr-x - patches
-rwxr-xr-x 420 setup.py
-rw-r--r-- 4134 wineactivity.py