14111 Update mandoc to 1.14.6
Reviewed by: Yuri Pankov <ypankov@tintri.com>
Reviewed by: Rich Lowe <richlowe@richlowe.net>
Approved by: Dan McDonald <danmcd@joyent.com>

8547 update mandoc to 1.14.3
Reviewed by: Robert Mustacchi <rm@joyent.com>
Approved by: Richard Lowe <richlowe@richlowe.net>