Fix typo in comment.
Fix typo in comment.

alisaifee/redis-py,JamieCressey/redispy,fengsp/redis-py,5977862/redis-py,5977862/redis-py,joshowen/redis-py,5977862/redis-py,fengsp/redis-py,andymccurdy/redis-py,ze-phyr-us/redis-py,Kazanz/redis-py,Kazanz/redis-py,andymccurdy/redis-py,joshowen/redis-py,alisaifee/redis-py,mozillazg/redis-py-doc,redis/redis-py,JamieCressey/redispy,joshowen/redis-py,mozillazg/redis-py-doc,rcrdclub/redis-py,JamieCressey/redispy,rcrdclub/redis-py,ze-phyr-us/redis-py,fengsp/redis-py,redis/redis-py,rcrdclub/redis-py,ze-phyr-us/redis-py,andymccurdy/redis-py,Kazanz/redis-py