Want to use xman on #FreeBSD? Start it this way to get manpages formatted right:
#!/bin/sh
export GROFF_NO_SGR=1
/usr/local/bin/xman
Before & after: https://computerfairi.es/media/4Ac1TAE-XvlGV9p_G0M https://computerfairi.es/media/9-5mWICKz0GBtbG1nXg
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I forgot to note why GROFF_NO_SGR needs to be set when starting xman on #FreeBSD:
During compiling, xman.c checks which OS it's being compiled on & hardwires `nroff -mandoc` as its page formatting aid if it detects the BSDs. However, nroff's mandoc macros output ANSI escape codes, while xman expects typewriter-style "back up & overstrike" codes.
That is, unless GROFF_NO_SGR is set. The only places I found it documented were on the Internet (for Linux-specific xman weirdness) and in the grotty(1) manpage.