Sentinel: Abort Hello quicker if not connected
Sentinel: Abort Hello quicker if not connected

We can save a little work by aborting when we enter the function
if we're disconnected.

jxwr/redis,MSOpenTech/redis,louisliangjun/redis,HunanTV/redis,splitice/redis,splitice/redis,xuzhezhaozhao/redis_reading,ksarch-saas/redis,MSOpenTech/redis,ramonsnir/redis,ksarch-saas/redis,splitice/redis,MSOpenTech/redis,xuzhezhaozhao/redis_reading,louisliangjun/redis,jxwr/redis,himoca/redis,himoca/redis,louisliangjun/redis,spearhead-ea/redis,ttuna/msot-redis,maodeyi/redis_lua,spearhead-ea/redis,HunanTV/redis,ttuna/msot-redis,HunanTV/redis,ramonsnir/redis,ksarch-saas/redis,darksideofthemoo/redis-histogram,slfs007/mk-redis,maodeyi/redis_lua,HunanTV/redis,ttuna/msot-redis,slfs007/mk-redis,darksideofthemoo/redis-histogram,ttuna/msot-redis,ramonsnir/redis,darksideofthemoo/redis-histogram,darksideofthemoo/redis-histogram,ttuna/msot-redis,xuzhezhaozhao/redis_reading,louisliangjun/redis,MSOpenTech/redis,jxwr/redis,splitice/redis,xuzhezhaozhao/redis_reading,spearhead-ea/redis,himoca/redis,MSOpenTech/redis,ksarch-saas/redis,slfs007/mk-redis,maodeyi/redis_lua