How to make man(1) use the entire terminal width? I'm on FreeBSD, using a wide xterm with, say, 132 characters per line. When running $ man man the manual page is formatted to fit an 80 character per line terminal width. Is there a way to make the formatter (groff, grotty) use a line width I specify? I read the manuals for man(1) and groff(1) but could not find an appropriate option. I know it can be done, since I have seen it work on some Linux distro.

Ony my Linux systems, `man 1 man` mentions the `MANWIDTH` environment variable, which, now that I look it up, is also specified in the FreeBSD `man(1)` manpage:


MANWIDTH If set to a numeric value, used as the width manpages should
be displayed. Otherwise, if set to a special value ``tty'',
and output is to a terminal, the pages may be displayed over
the whole width of the screen.