Fix tidy validation

[Vladimir Shestakov]

Hello!
> *** /srv/www.debian.org/www/doc/obsolete.ru.html
> line 412 column 3 - Error: <inddpsvn-distribute-deb> is not recognized!
> line 412 column 3 - Warning: discarding unexpected
> <inddpsvn-distribute-deb>
Do I understand correctly to fix this I need to insert string "#include
"$(ENGLISHDIR)/doc/devel-manuals.defs"" to file
webwml/russian/doc/obsolete.wml? And this concern other languages?
 Vladimir