CBLT-42:  fix token instantiation in TEMPLATE_FILE

Change-Id: I6c74419004211d06979738c9cf6be232111ade1d
Reviewed-on: http://review.couchbase.org/37323
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>