From 6e95c16da62b5071d9e8580d84037fd2b4e92aee Mon Sep 17 00:00:00 2001
From: alexlamsl <alexlamsl@gmail.com>
Date: Sat, 15 Apr 2017 16:00:37 +0800
Subject: [PATCH] update documentation

fixes #465
---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index e46aa017..f1c0cc5e 100644
--- a/README.md
+++ b/README.md
@@ -538,8 +538,8 @@ You can pass `--comments` to retain certain comments in the output.  By
 default it will keep JSDoc-style comments that contain "@preserve",
 "@license" or "@cc_on" (conditional compilation for IE).  You can pass
 `--comments all` to keep all the comments, or a valid JavaScript regexp to
-keep only comments that match this regexp.  For example `--comments
-'/foo|bar/'` will keep only comments that contain "foo" or "bar".
+keep only comments that match this regexp.  For example `--comments /^!/`
+will keep comments like `/*! Copyright Notice */`.
 
 Note, however, that there might be situations where comments are lost.  For
 example: