Fix util.c compilation by including stdint.h.
Fix util.c compilation by including stdint.h.

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