Change unixsocketperm comment to 700 from 755
Change unixsocketperm comment to 700 from 755

According to unix manuals, "Connecting to the socket object requires
read/write permission." -- mode 755 is useless for anybody
other than the owner.

Fixes #1696

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