check manual locations and formats

On your favourite operating system, figure out all locations where manuals are installed and identify those that man(1) searches by default. Figure out all formats of installed manual pages (formatted/unformatted, source language, compression, whatever). Check that makewhatis(8) and apropos(1) work for all locations and all formats. Report any issues you find to me.

For this exercise, having an up-to-date mandoc suite is more important than for most. Consider checking out from and building and installing from that before starting. On OpenBSD, it is better to build from /usr/src/usr.bin/mandoc instead.
September 26, 2014