patch: resubmitted -me documentation fixes

[Dave Kemper]

I am resubmitting this patch, which I have regenerated against the latest
groff source.  It changes only three documentation files, no code.

The rationale of the patch is in a post to the groff list, archived at
http://lists.gnu.org/archive/html/groff/2011-07/msg00032.html

The original patch file I submitted
(http://lists.gnu.org/archive/html/groff/2011-12/msg00053.html) was
malformed, due to my cut and paste turning some tab characters into
strings of spaces.

As Werner's energies have been focused elsewhere recently, low-priority
groff patches were not being applied for a while, so there seemed
little point in submitting this patch correction/update before.  From a
recent post, it appears now that Bernd Warken has taken up applying
documentation patches.  So I am resubmitting this one, and have a few
other documentation corrections to make in the next few days as well.

Thank you.

me.documentation.patch
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