MB-10170: recompiled generate_cert program

It looks like last time I used some broken go toolchain that somehow
made non-statically-linked executable.

Change-Id: I404b8793fe003d05b9891b8ac019789496fb4eaf
Reviewed-on: http://review.couchbase.org/33719
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Aliaksey Artamonau <aliaksiej.artamonau@gmail.com>