Free fakeclient argv on AOF error.
Free fakeclient argv on AOF error.

We exit later, so no bug fixed, but it is more correct.

See #6054, thanks to @ShooterIT for finding the issue.

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