Null-terminate unhandled vbucket-stream chunk data
Null-terminate unhandled vbucket-stream chunk data

Otherwise strstr() might return faulty delimiter in already-parsed data

Change-Id: I5b793c39a89c072388987ef1e75d52fa1624e9ee
Reviewed-on: http://review.couchbase.org/14141
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

senthilkumaranb/libcouchbase,senthilkumaranb/libcouchbase,uvenum/libcouchbase,couchbase/libcouchbase,signmotion/libcouchbase,maxim-ky/libcouchbase,trondn/libcouchbase,uvenum/libcouchbase,couchbase/libcouchbase,mnunberg/libcouchbase,couchbase/libcouchbase,PureSwift/libcouchbase,couchbase/libcouchbase,signmotion/libcouchbase,kojiromike/libcouchbase,mody/libcouchbase,mody/libcouchbase,uvenum/libcouchbase,maxim-ky/libcouchbase,avsej/libcouchbase,mody/libcouchbase,PureSwift/libcouchbase,signmotion/libcouchbase,uvenum/libcouchbase,PureSwift/libcouchbase,couchbase/libcouchbase,kojiromike/libcouchbase,avsej/libcouchbase,uvenum/libcouchbase,avsej/libcouchbase,trondn/libcouchbase,maxim-ky/libcouchbase,trondn/libcouchbase,mnunberg/libcouchbase,PureSwift/libcouchbase,mnunberg/libcouchbase,kojiromike/libcouchbase,trondn/libcouchbase,trondn/libcouchbase,avsej/libcouchbase,kojiromike/libcouchbase,couchbase/libcouchbase,signmotion/libcouchbase,mody/libcouchbase,senthilkumaranb/libcouchbase,senthilkumaranb/libcouchbase,couchbase/libcouchbase,mnunberg/libcouchbase,avsej/libcouchbase,mnunberg/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,maxim-ky/libcouchbase