Panic when we are sending an error to our master/slave.
Panic when we are sending an error to our master/slave.

Related to #5135, see discussion there.

PKRoma/redis,PKRoma/redis,PKRoma/redis,oranagra/redis,ofirluzon/redis,soveran/redis,ofirluzon/redis,oranagra/redis,ofirluzon/redis,nnog/redis,charsyam/redis,pmem/redis,antirez/redis,ctripcorp/redis,soveran/redis,GitHubMota/redis,soveran/redis,nnog/redis,PKRoma/redis,yossigo/redis,nnog/redis,charsyam/redis,spinlock/redis,spinlock/redis,soloestoy/redis,neomantra/redis,pmem/redis,GitHubMota/redis,charsyam/redis,spinlock/redis,oranagra/redis,PKRoma/redis,GitHubMota/redis,soloestoy/redis,soveran/redis,soloestoy/redis,ofirluzon/redis,neomantra/redis,ctripcorp/redis,yossigo/redis,nnog/redis,neomantra/redis,soloestoy/redis,yossigo/redis,antirez/redis,neomantra/redis,oranagra/redis,spinlock/redis,ctripcorp/redis,oranagra/redis,ofirluzon/redis,pmem/redis,GitHubMota/redis,antirez/redis,neomantra/redis,pmem/redis,antirez/redis,soloestoy/redis,yossigo/redis,yossigo/redis,ctripcorp/redis,charsyam/redis,charsyam/redis