Fix tracking table max keys option in redis.conf.
Fix tracking table max keys option in redis.conf.

PKRoma/redis,PKRoma/redis,neomantra/redis,charsyam/redis,neomantra/redis,antirez/redis,oranagra/redis,yossigo/redis,yossigo/redis,ctripcorp/redis,ofirluzon/redis,ofirluzon/redis,ctripcorp/redis,charsyam/redis,soloestoy/redis,yossigo/redis,oranagra/redis,neomantra/redis,oranagra/redis,neomantra/redis,ofirluzon/redis,soloestoy/redis,PKRoma/redis,ctripcorp/redis,PKRoma/redis,yossigo/redis,neomantra/redis,oranagra/redis,antirez/redis,soloestoy/redis,PKRoma/redis,antirez/redis,oranagra/redis,ofirluzon/redis,ctripcorp/redis,charsyam/redis,charsyam/redis,antirez/redis,yossigo/redis,charsyam/redis,soloestoy/redis,soloestoy/redis,ofirluzon/redis