fix split chars

Author: XieBiao

README.md

@@ -22,15 +22,15 @@ Usage of ./redis-memory-analysis-darwin-amd64:
   -rdb string
     	The rdb file of redis (default "")
   -prefixes string
-    	The prefixes list of redis key, be split by ',', special pattern characters need to escape by '\' (default "#,:")
+    	The prefixes list of redis key, be split by '//', special pattern characters need to escape by '\' (default "#//:")
   -reportPath string
     	The csv file path of analysis result (default "./reports")
 
 # run by connecting to redis
-./redis-memory-analysis-linux-amd64 -ip="127.0.0.1" -port=6380 -password="abc" -prefixes="#,:"
+./redis-memory-analysis-linux-amd64 -ip="127.0.0.1" -port=6380 -password="abc" -prefixes="#//:"
 
 # run by redis rdb file
-./redis-memory-analysis-linux-amd64 -rdb="./6379_dump.rdb" -prefixes="#,:"
+./redis-memory-analysis-linux-amd64 -rdb="./6379_dump.rdb" -prefixes="#//:"
 ```
 
 ## Source Code Usage