The old version threw errors when formatted:
$ LC_ALL=en_US.UTF-8 MANROFFSEQ='' MANWIDTH=80 man --warnings -E UTF-8 -l -Tutf8 -Z ./doc/openscad.1 >/dev/null
<standard input>:85: warning [p 2, 4.7i, div `an-div', 0.0i]: cannot adjust line
This was discovered by lintian and reported as
'manpage-has-errors-from-man'.
Forwarded: no
Gbp-Pq: Name man-page-Rephase-colorscheme-option-to-avoid-problem.patch
