Use Fastfoo's compact style for argument processor

dotfiles/gittum/bin/sibling

@@ -62,30 +62,13 @@ sibling=$(find -maxdepth 1 -type d -name "[^.]*" | sort | head -1)
 test -f $sibling_conf && sibling=$(cat $sibling_conf)
 remote_name="origin"
 
-while true;
-do
-    case $1 in
-        -r|--remote-name)
-            remote_name=$2
-            shift 2
-            ;;
-        -s|--sibling)
-            sibling=$2
-            shift 2
-            ;;
-        -v|--verbose)
-            verbose=true
-            shift
-            ;;
-        "")
-            break
-            ;;
-        *)
-            project=$1
-            shift
-            ;;
-    esac
-done
+while true; do case $1 in
+    -r|--remote-name)   remote_name=$2; shift 2 ;;
+    -s|--sibling)       sibling=$2;     shift 2 ;;
+    -v|--verbose)       verbose=true;   shift   ;;
+    "")                                 break   ;;
+    *)                  project=$1;     shift   ;;
+esac done
 
 test -n "$project" || usage
 test -n "$sibling" || die "could not find older sibling"