Added a top-function comment to rioWriteHashIteratorCursor() to better specify what the function does. Not immediately clear from the name.
Added a top-function comment to rioWriteHashIteratorCursor() to better specify what the function does. Not immediately clear from the name.

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