From e80c6c94b38df7823de465cb9d68f04f18f2e56a Mon Sep 17 00:00:00 2001
From: mike-thompson-day8 <mike.thompson@day8.com.au>
Date: Fri, 24 Apr 2015 23:46:27 +1000
Subject: [PATCH] Improve comment

---
 src/re_frame/undo.cljs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/re_frame/undo.cljs b/src/re_frame/undo.cljs
index b5939ac..15d36b3 100644
--- a/src/re_frame/undo.cljs
+++ b/src/re_frame/undo.cljs
@@ -128,10 +128,9 @@
     (recur (dec n))))
 
 (handlers/register-base     ;; not a pure handler
-  :undo                     ;; usage:  (dispatch [:undo n])
+  :undo                     ;; usage:  (dispatch [:undo n])  n is optional, defaults to 1
   (fn handler
     [_ [_ n]]
-    ;; if n absent, defaults to 1. If clear-redos? absent, defaults to false.
     (if-not (undos?)
       (warn "re-frame: you did a (dispatch [:undo]), but there is nothing to undo.")
       (undo-n (or n 1)))))