A manual page provoked warnings or errors from the
program. Here are some common ones:
"cannot adjust" or "can't break" are issues with paragraph filling. They are usually related to long lines. Justifying text on the left hand side can help with adjustments. Hyphenation can help with breaks.
For more information, please see "Manipulating Filling and Adjusting"
and "Manipulating Hyphenation" in the Groff manual (see
"can't find numbered character" usually means that the input was in a
national legacy encoding. The warning means that some characters were
dropped. Please use escapes such as
[:a] as described on the
groff_char manual page.
Other common warnings are formatting typos. String arguments to
.IP require quotes. Usually, some text is lost or mangled. See
groff_mdoc if using
manual page for details on macros.
The check for manual pages uses the
--warnings option to
man to catch common problems, like a
. or a
at the beginning of a line as literal text. They are interpreted as
Groff commands. Just reformat the paragraph so the characters are not at
the beginning of a line. You can also add a zero-width space (
in front of them.
Aside from overrides, warnings can be disabled with the
directive. Please see "Debugging" in the Groff manual.
You can see the warnings yourself by running the command used by Lintian:
<code>LC_ALL=en_US.UTF-8 MANROFFSEQ='' MANWIDTH=80 \ man --warnings -E UTF-8 -l -Tutf8 -Z <file> >/dev/null</code>