Fix rdb.c var types when calling rdbLoadLen().
Fix rdb.c var types when calling rdbLoadLen().

Technically as soon as Redis 64 bit gets proper support for loading
collections and/or DBs with more than 2^32 elements, the 32 bit version
should be modified in order to check if what we read from rdbLoadLen()
overflows. This would only apply to huge RDB files created with a 64 bit
instance and later loaded into a 32 bit instance.

soloestoy/redis,kensou97/redis,PKRoma/redis,colstrom/redis,kensou97/redis,soloestoy/redis,soloestoy/redis,antirez/redis,soveran/redis,soloestoy/redis,sunheehnus/redis,Sciumo/redis,ctripcorp/redis,ofirluzon/redis,Sciumo/redis,neomantra/redis,PKRoma/redis,spinlock/redis,zguangyu/redis,nnog/redis,pmem/redis,charsyam/redis,oranagra/redis,arijitvt/redis,sunheehnus/redis,oranagra/redis,ton31337/redis,PKRoma/redis,badboy/redis,PKRoma/redis,oranagra/redis,yossigo/redis,dreamquster/redis,neomantra/redis,antirez/redis,pmem/redis,charsyam/redis,yossigo/redis,ofirluzon/redis,ctripcorp/redis,yossigo/redis,ton31337/redis,arijitvt/redis,pmem/redis,sunheehnus/redis,nnog/redis,colstrom/redis,spinlock/redis,OmarQunsul/graph-redis,GitHubMota/redis,kensou97/redis,ctripcorp/redis,dreamquster/redis,badboy/redis,zguangyu/redis,neomantra/redis,ctripcorp/redis,yossigo/redis,dreamquster/redis,YongMan/redis,colstrom/redis,neomantra/redis,OmarQunsul/graph-redis,ofirluzon/redis,arijitvt/redis,neomantra/redis,oranagra/redis,ton31337/redis,hgl888/redis,GitHubMota/redis,colstrom/redis,YongMan/redis,ofirluzon/redis,GitHubMota/redis,oranagra/redis,antirez/redis,YongMan/redis,spinlock/redis,zguangyu/redis,charsyam/redis,spinlock/redis,hgl888/redis,hgl888/redis,YongMan/redis,nnog/redis,kensou97/redis,sunheehnus/redis,rogerchina/redis,antirez/redis,soveran/redis,OmarQunsul/graph-redis,nnog/redis,rogerchina/redis,zguangyu/redis,hgl888/redis,soveran/redis,Sciumo/redis,rogerchina/redis,yossigo/redis,soveran/redis,badboy/redis,rogerchina/redis,arijitvt/redis,Sciumo/redis,ton31337/redis,pmem/redis,GitHubMota/redis,OmarQunsul/graph-redis,charsyam/redis,dreamquster/redis,soloestoy/redis,charsyam/redis,badboy/redis,PKRoma/redis,ofirluzon/redis