SPCs can hurt overviews (was Inexplicable all.SCORE analysis)

[Karl Kleinpaste <karl@jprc.com>]

The erroneously-scored articles previously mentioned contain a Lines:
header which include trailing SPCs, e.g., "^Lines: 15        $".  This
confuses overview parsing, because the SPCs manage to survive into
INN's overview files, and Gnus does not hunt down the next TAB properly.

Looks like a user agent flaw, to start with; the articles in question
claim an agent tag of QWK v2.12.  Thereafter, it's INN's fault for
letting trailing SPCs into the overviews, though one could argue that
INN was doing the correct thing (copy blindly).  And lastly, it's
Gnus' mistake not to have hunted for the separating TAB properly.

Please experiment by implementing an "xref" score rule such as
	("xref" (".* .* .* .* .* .*" -10 nil r))
in all.SCORE and siccing it on <970923100046612@eqcity.ktb.net> in
comp.protocols.tcp-ip.domains.

(q 0.10, xemacs 19.14, inn 1.5.1.)

regards,
--karl