config: handle special configuration "" for auth
config: handle special configuration "" for auth

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