RDB type loading functions clarified in comments.
RDB type loading functions clarified in comments.

Improved comments to make clear that rdbLoadType() just loads a
general TYPE in the context of RDB that can be an object type or an
expire type, end-of-file, and so forth.

While rdbLoadObjectType() enforces that the type is a valid Object Type
otherwise it returns -1.

Jonavin/redis,miminus/redis,nandhanurrevanth/redis,upsoft/redis,damy/redis,Jonavin/redis,jqk6/redis,erwin00776/redis-2.8-optimize,sidsen/redis,hanmichael/redis,jacklee0810/redis,quangnguyen90/redis,powerumc/MyRedis_old,ideaar/redis,adamweixuan/redis,damy/redis,richmonkey/netleveldb,crask/redis-cutter,oaastest/redis,alpha8/redis,erwin00776/redis-2.8-optimize,laurencee/redis,Jonavin/redis,jacklee0810/redis,StartTheShift/redis-shift,liqiang199105/redis,DeNA/redis,janeasystems/redis,enginekit/redis,fanxu/redis,quangnguyen90/redis,sidsen/redis,ideaar/redis,damy/redis,crask/redis-cutter,hanmichael/redis,ideaar/redis,upsoft/redis,hanmichael/redis,alpha8/redis,upsoft/redis,sidsen/redis,hanmichael/redis,enginekit/redis,powerumc/MyRedis_old,jaambee/redis,enginekit/redis,ideaar/redis,liqiang199105/redis,jqk6/redis,ScottKaiGu/redis,Cybermaxs/redis,ScottKaiGu/redis,kolonse/redis,LittlePeng/redis,Cybermaxs/redis,adamweixuan/redis,Jonavin/redis,daogangtang/redis_luajit2.6,kts12345/redis,daogangtang/redis_luajit2.6,jacklee0810/redis,miminus/redis,adamweixuan/redis,powerumc/MyRedis,kts12345/redis,ScottKaiGu/redis,fanxu/redis,ideaar/redis,oaastest/redis,kts12345/redis,enginekit/redis,grisha/thredis,alpha8/redis,jqk6/redis,kolonse/redis,laurencee/redis,oaastest/redis,shanegxxiao/redis,damy/redis,janeasystems/redis,kolonse/redis,alpha8/redis,shanegxxiao/redis,grisha/thredis,sidsen/redis,alpha8/redis,richmonkey/netleveldb,Cybermaxs/redis,StartTheShift/redis-shift,miminus/redis,adamweixuan/redis,janeasystems/redis,miminus/redis,shanegxxiao/redis,nandhanurrevanth/redis,jacklee0810/redis,richmonkey/netleveldb,fanxu/redis,jacklee0810/redis,kolonse/redis,erwin00776/redis-2.8-optimize,oaastest/redis,DeNA/redis,janeasystems/redis,hanmichael/redis,nandhanurrevanth/redis,DeNA/redis,laurencee/redis,grisha/thredis,jqk6/redis,laurencee/redis,LittlePeng/redis,daogangtang/redis_luajit2.6,kolonse/redis,liqiang199105/redis,jaambee/redis,fanxu/redis,richmonkey/netleveldb,kts12345/redis,Cybermaxs/redis,laurencee/redis,adamweixuan/redis,powerumc/MyRedis,nandhanurrevanth/redis,ScottKaiGu/redis,crask/redis-cutter,upsoft/redis,liqiang199105/redis,kts12345/redis,quangnguyen90/redis,powerumc/MyRedis_old,janeasystems/redis,nandhanurrevanth/redis,daogangtang/redis_luajit2.6,jaambee/redis,shanegxxiao/redis,liqiang199105/redis,enginekit/redis,sidsen/redis,powerumc/MyRedis_old,powerumc/MyRedis,erwin00776/redis-2.8-optimize,jaambee/redis,quangnguyen90/redis,damy/redis,ScottKaiGu/redis,oaastest/redis,sidsen/redis,shanegxxiao/redis,Cybermaxs/redis,StartTheShift/redis-shift,jaambee/redis,quangnguyen90/redis,grisha/thredis,LittlePeng/redis,Jonavin/redis,upsoft/redis,jqk6/redis,miminus/redis