illumos gate

Review: https://illumos.org/rb/r/2540/

Test result based on the diff:

nowhere(~/ws/illumos-gate)[0]% man -M usr/src/man ls.1 > /tmp/after
nowhere(~/ws/illumos-gate)[0]% man ls.1 > /tmp/before
nowhere(~/ws/illumos-gate)[0]% diff /tmp/{before,after}
1250,1251c1250,1251
<            Display a suffix after a file depending on it's type, similar to
<            the -F option, except * is not appended to executable files.
---
>            Display a suffix after a file depending on its type, similar to the
>            -F option, except * is not appended to executable files.
1743c1743
<                                November 24, 2014                         LS(1)
---
>                                 April 25, 2020                           LS(1)
nowhere(~/ws/illumos-gate)[1]%