Fix generation of "humanish" part of source repo

If repo has the form <host>:<path> and <path> doesn't contain a slash, the
cloned repository is named "<host>:<path>", instead of "<path>" only.
Signed-off-by: NUwe Zeisberger <zeisberg@informatik.uni-freiburg.de>
Signed-off-by: NJunio C Hamano <junkio@cox.net>

git-clone.sh

@@ -99,7 +99,7 @@ fi
 
 dir="$2"
 # Try using "humanish" part of source repo if user didn't specify one
-[ -z "$dir" ] && dir=$(echo "$repo" | sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*/||g')
+[ -z "$dir" ] && dir=$(echo "$repo" | sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
 [ -e "$dir" ] && echo "$dir already exists." && usage
 mkdir -p "$dir" &&
 D=$(cd "$dir" && pwd) &&