fix relative require path
fix relative require path

Change-Id: Ic56acad2b64a9bf96a51f32ece466aa9e51ff2aa
Reviewed-on: http://review.couchbase.org/21673
Reviewed-by: Chris Anderson <2d93822289c316cb3d36491aa561290e86ec1ac5@couchbase.com>
Tested-by: Chris Anderson <2d93822289c316cb3d36491aa561290e86ec1ac5@couchbase.com>

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