Fix for 2.2 TCMALLOC build, thanks to Pieter Noordhuis for the patch.
Fix for 2.2 TCMALLOC build, thanks to Pieter Noordhuis for the patch.

cen-li/redis,oas1986/redis-s,cen-li/redis,oas1986/redis-s,cen-li/redis,cen-li/redis,oas1986/redis-s,oas1986/redis-s