Transactions: use the propagate() API to propagate MULTI.
Transactions: use the propagate() API to propagate MULTI.

The behavior is the same, but the code is now cleaner and uses the
proper interface instead of dealing directly with AOF/replication
functions.

JackieXie168/redis,JackieXie168/redis,JackieXie168/redis,JackieXie168/redis