MB-6452: Fix path quoting in wrapper script
MB-6452: Fix path quoting in wrapper script

The generic wrapper script would blow up if the path to the tool
contained a space, as happens in the Mac package.

Change-Id: I6dc6a66e1af67eb064bd7d6fa3d37c792961edd4
Reviewed-on: http://review.couchbase.org/20254
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Jens Alfke <21e2afd93d5ce53123476032b5dca8a79b546094@couchbase.com>

daverigby/ep-engine,abhinavdangeti/ep-engine,abhinavdangeti/ep-engine,daverigby/ep-engine,jimwwalker/ep-engine,teligent-ru/ep-engine,daverigby/kv_engine,couchbase/ep-engine,hisundar/ep-engine,owendCB/ep-engine,jimwwalker/ep-engine,sriganes/ep-engine,couchbase/ep-engine,jimwwalker/ep-engine,teligent-ru/ep-engine,owendCB/ep-engine,daverigby/kv_engine,sriganes/ep-engine,membase/ep-engine,daverigby/ep-engine,hisundar/ep-engine,daverigby/ep-engine,teligent-ru/ep-engine,daverigby/kv_engine,owendCB/ep-engine,daverigby/kv_engine,hisundar/ep-engine,couchbase/ep-engine,owendCB/ep-engine,couchbase/ep-engine,sriganes/ep-engine,membase/ep-engine,teligent-ru/ep-engine,hisundar/ep-engine,abhinavdangeti/ep-engine,abhinavdangeti/ep-engine,membase/ep-engine,membase/ep-engine,jimwwalker/ep-engine,abhinavdangeti/ep-engine,sriganes/ep-engine