Update git-gutter lighter

emacs.el

@@ -389,6 +389,8 @@ found, otherwise returns nil."
   (global-page-break-lines-mode 1))
 
 (when (safe-require-or-eval 'git-gutter)
+  (custom-set-variables
+   '(git-gutter:lighter " Gttr"))
   (custom-set-variables
    '(git-gutter:update-interval 2))
   (custom-set-variables