Fix automatic rewrite starting too early.
Fix automatic rewrite starting too early.

Slight adjustment in growth calculation.

coverxiaoeye/redis,coverxiaoeye/redis,VCTLabs/redis,VCTLabs/redis,rgl/redis,coverxiaoeye/redis,esomenos/redis,esomenos/redis,esomenos/redis,sunqb/redis-1,sunqb/redis-1,dmajkic/redis,VCTLabs/redis,jango2015/redis,Linked95/redis,lonely8rain/redis,rgl/redis,rgl/redis,AndersonFirmino/redis,dmajkic/redis,Linked95/redis,VCTLabs/redis,Linked95/redis,mdavid/redis-windows-port,AndersonFirmino/redis,mdavid/redis-windows-port,mdavid/redis-windows-port,lonely8rain/redis,dmajkic/redis,jango2015/redis,jango2015/redis,sunqb/redis-1,AndersonFirmino/redis,lonely8rain/redis,rgl/redis