antirez/redis — pull request #2203 by Brochen (2014-12-10 03:21:07+00:00)
Title: Update sds.c

in the case (all chars of the string s found in 'cset' ),
line[573] will no more do the same thing line[572] did.
this will be more faster especially in the case that the string s is very long and all chars of string s found in 'cset'