-v and -W; include; plugin loading; feed format and id options; author
formatting; template conditionals: broken 301 redirects; useids; content
vs. summary; daysections/timesections; removing articles from a feed;
-keeping comments; numthreads; various error messages.
+keeping comments; numthreads; outputfile; various error messages.
Make subclasses of Persistable call Persistable's constructor.
(Identified by coverage analysis.)
runs -uw
output_n 6
+begin "outputfile"
+make_rss20 $httpdir/feed.rss
+add "feed 0 $httpurl/feed.rss"
+add "outputfile second.html"
+runs -uw
+contains $statedir/second.html example-feed-title
+
+begin "outputfile -"
+make_rss20 $httpdir/feed.rss
+add "feed 0 $httpurl/feed.rss"
+add "outputfile -"
+run -uw
+contains $outfile example-feed-title
+
begin "maxarticles 10"
make_n 20 $httpdir/feed.rss
add "maxarticles 10"