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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warn about .Ns macros that have no effect because they are followed
by an isolated closing delimiter; inspired by mdoclint

Macros following block closing macros aren't line macros.
Testing mdoc_macro.c 1.79 and mdoc_man.c 1.51.

Thanks to Franco Fichtner <franco at lastsummer dot de>
for providing the test case this patc

Macros following block closing macros aren't line macros.
Testing mdoc_macro.c 1.79 and mdoc_man.c 1.51.

Thanks to Franco Fichtner <franco at lastsummer dot de>
for providing the test case this patch was based on.

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Let a trailing .Ns macro take effect
even on an input line containing a partial implicit macro.

Fixes horizontal spacing in vi(1), ddb(4), and ppp(8).

Complete overhaul of the mandoc(1) test suite.
* Test the recently introduced -Tman output mode, too.
* Specify date and OS arguments in all tests.
* Remove the kludge of sed(1)ing away the page foot

Complete overhaul of the mandoc(1) test suite.
* Test the recently introduced -Tman output mode, too.
* Specify date and OS arguments in all tests.
* Remove the kludge of sed(1)ing away the page footer lines.
* New make(1) variables SKIP_TMAN, SKIP_GROFF.
* Drop obsolete, clumsy make(1) variable GROFF_TARGETS.
* Delete obsolete mdoc/Bl/E*.sh error reporting tests.
* Silence char/N/basic.
* New targets:
- ascii, ascii-clean - to run -Tascii tests only
- tman, tman-clean - to run the new -Tman tests only
- obj-clean - maintainer only, needed before groff-clean and groff
- groff-clean - maintainer only, affects checked-in files

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If .Ns is specified on its own line, ignore it, like groff does;
from kristaps@.