Fix RDB encoding test for new csvdump format.
Fix RDB encoding test for new csvdump format.

ksarch-saas/redis,himoca/redis,ramonsnir/redis,ksarch-saas/redis,splitice/redis,HunanTV/redis,spearhead-ea/redis,splitice/redis,louisliangjun/redis,louisliangjun/redis,spearhead-ea/redis,louisliangjun/redis,slfs007/mk-redis,splitice/redis,maodeyi/redis_lua,louisliangjun/redis,ksarch-saas/redis,spearhead-ea/redis,himoca/redis,maodeyi/redis_lua,slfs007/mk-redis,maodeyi/redis_lua,ramonsnir/redis,himoca/redis,ksarch-saas/redis,ramonsnir/redis,splitice/redis,HunanTV/redis,HunanTV/redis,HunanTV/redis,slfs007/mk-redis