Bug: ntpq rv has debug output

ntpq> rv
Querying 0
status=0615 leap_none, sync_ntp, 1 event, clock_sync,
version="ntpd 4.2.8p6@1.3265 Fri Feb  5 17:38:17 UTC 2016 (124~824)", processor="x86_64", system="Darwin/16.3.0", leap=00, stratum=2, precision=-20, rootdelay=30.428, rootdisp=71.518,
refid=17.253.14.253, reftime=dbf0c842.05018f4a 2016-12-06T00:16:50.019, clock=dbf0d0b7.9efc6a8f 2016-12-06T00:52:55.621, peer=51796, tc=10, mintc=3, offset=21.64677, frequency=-28.436,
sys_jitter=0.0, clk_jitter=5.747, clk_wander=0.018

This tracing was added in d7135c8c and likely needs to be wrapped in a self.debug test