redis/redis-rb — pull request #274 by Radagaisus (2012-09-07 12:08:09+00:00)
Title: Sadd Command should return the number of elements present in a set

From the Redis docs for [sadd](http://redis.io/commands/sadd):

"Integer reply: the number of elements that were added to the set, not including all the elements already present into the set."