Add cluster or sentinel to proc title
Add cluster or sentinel to proc title

If you launch redis with `redis-server --sentinel` then
in a ps, your output only says "redis-server IP:Port" — this
patch changes the proc title to include [sentinel] or
[cluster] depending on the current server mode:
e.g.  "redis-server IP:Port [sentinel]"
      "redis-server IP:Port [cluster]"

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