Fix compile warnings
Fix compile warnings

Change-Id: Id3dd3780bc45ac0b60715889167acf8b8e7ede79
Reviewed-on: http://review.couchbase.org/32679
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

mrkwse/memcached,owendCB/memcached,daverigby/memcached,couchbase/memcached,daverigby/kv_engine,daverigby/memcached,cloudrain21/memcached-1,jimwwalker/memcached,mrkwse/memcached,owendCB/memcached,daverigby/kv_engine,couchbase/memcached,daverigby/kv_engine,owendCB/memcached,cloudrain21/memcached-1,mrkwse/memcached,owendCB/memcached,daverigby/kv_engine,cloudrain21/memcached-1,couchbase/memcached,couchbase/memcached,cloudrain21/memcached-1,daverigby/memcached,mrkwse/memcached,jimwwalker/memcached,daverigby/memcached,jimwwalker/memcached