MB-11487 Use gozip in cbcollect_info.

Change-Id: Ifd6119922236cd4a1d6b96bed6443705a617d8ca
Reviewed-on: http://review.couchbase.org/38700
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>