Make sure that the direct jls invocations prints something
reasonable close to and in the same format as it had always.

r185435 said it would try that but I had been living with jail
patches for too long to actually remember the single-line format
when adding backwards compatibility back in p4.

Reported by: Philipp Wuensche <cryx-freebsd@h3q.com>
Tested by: Philipp Wuensche <cryx-freebsd@h3q.com>
MFC after: 4 weeks (just for me to get the mail)