MB-25814: Enforce get_if in engine_loader
MB-25814: Enforce get_if in engine_loader

Change-Id: Ic06a8813126fb61845327e8cdc4bade18ed172d8
Reviewed-on: http://review.couchbase.org/82719
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>
Tested-by: Build Bot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>

daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/kv_engine