I'm glad to report that other than this, the current Hg versions of everything worked fine first time on Centos 5 when I upgraded today.
Thanks,
Richard
I've deleted the whole directory helppages/ and replaced it with a
reference to the repository of help pages that's being worked on Meta-
Wiki[1]:
http://svn.wikimedia.org/viewvc/mediawiki?view=rev&revision=47743
[1] http://meta.wikimedia.org/wiki/Book_tool/Help/Books
-- Johannes