Merge pull request tj#408 from nicolaiskogheim/refactor-contrib

contrib: refactor, and conform to git

bin/git-contrib

@@ -4,6 +4,4 @@ user="$*"
 
 test -z "$user" && echo "user name required." 1>&2 && exit 1
 
-count=`git log --oneline --pretty="format: %an" | grep -- "$user" | wc -l`
-test $count -eq 0 && echo "$user did not contribute." && exit 1
-git shortlog | grep -A $count -- "$user ("
+git shortlog --author="$user"