Messages of the -Wbase level now print STYLE:. Since this
causes horrible churn anyway, profit of the opportunity to stop
excessive testing, such that this is hopefully the last instance
of such chu

Messages of the -Wbase level now print STYLE:. Since this
causes horrible churn anyway, profit of the opportunity to stop
excessive testing, such that this is hopefully the last instance
of such churn. Consistently use OpenBSD RCS tags, blank .Os,
blank fourth .TH argument, and Mdocdate like everywhere else.
Use -Ios=OpenBSD for platform-independent predictable output.

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cope with changes in BASE messages

churn related to the new style message about RCS ids

churn caused by the new Mdocdate messages, no easy way to avoid this :(

style message about missing blank before trailing delimiter;
inspired by mdoclint(1), and jmc@ considers it useful

Delete the legacy generic warning type MANDOCERR_ARGCWARN,
replacing the last instances by more specific warnings.
Improved functionality, minus 50 lines of code.

Remove bulky, irrelevant library description string tables
not used by a single manual in OpenBSD and just print library names;
will remain in the portable version for use by FreeBSD and NetBSD.
Remo

Remove bulky, irrelevant library description string tables
not used by a single manual in OpenBSD and just print library names;
will remain in the portable version for use by FreeBSD and NetBSD.
Removes 150 lines from source tree and 16 Kilobytes (4%) from binary.
Bloat found by deraadt@.

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Improve and test the messages about empty macros,
in particular reporting the macro names involved.