tweak previous; misc spelling, grammar, wording and formatting fixes

faq/ports/specialtopics.html

@@ -1274,11 +1274,8 @@ <h3>Non-English manual pages</h3>
 <ol>
 <li>If upstream provides non-English manual pages, install them if
 that is possible without jumping through hoops, and unless there
-are specific reasons not too.  "They are outdated" is not a good
-reason to not install them, as long as upstream still includes them
-in the official distribution.  We don't try to judge the quality
-of third-party English documentation either, and besides, knowing
-<em>something</em> is available may motivate users to improve it.
+are specific reasons not to.
+"They are outdated" is not a good reason to exclude them.
 
 <li>Never install any encoding except UTF-8.
 If upstream provides UTF-8, great.
@@ -1289,25 +1286,19 @@ <h3>Non-English manual pages</h3>
 way as with English manuals, simply install the UTF-8 source
 code to <tt>man/language/manN/*.N</tt> and do not <tt>USE_GROFF</tt>.
 
-<li>If mandoc does not cope - which should be very rare by now,
-we have less than 130 ports left in the whole tree that still
-<tt>USE_GROFF</tt>, even for English manuals - the proper order of
+<li>If mandoc does not cope, the proper order of
 operations is iconv(1) -t UTF-8, then preconv(1), then nroff(1),
 never some other way round.
 
 <li>If possible, install to <tt>man/language/manN</tt>,
-without any "_" or "@": KISS.
+without any "_" or "@" characters.
 Never include the encoding in the path name, and make sure
 the <tt>/language/</tt> part never contains "." (a dot).
 
 <li>As an exception, use <tt>zh_CN</tt> and <tt>zh_TW</tt> rather
 than just <tt>zh</tt>.
 Also, keep <tt>pt</tt> and <tt>pt_BR</tt> as they are upstream,
-and install both if available.  The Brazilian version is often
-better maintained, and it's not our job to try and merge the two
-into a common directory.
-Delete ridiculous stuff like <tt>en_*</tt> and <tt>fr_CA</tt> rather
-than installing it.
+and install both if available. 
 </ol>
 
 <p>If the above is followed, people can do the following with no