svn-commits-list size limit opens a possibility to hide commits

[Christian Persch <chpe gnome org>]

Hi;

it's happened to me a few times that the autogenerated mail from a svn
commit to the svn-commits-list exceeded that list's mail size limit
(500KiB). In that case the comitter gets a moderator mail, with a link
to click to cancel the mail. This is obviously bad, in that it allows a
comitter to cancel the notification mail about his commit, effectively
hiding his commit!
IMHO, in case the commit mail exceeds the size limit (which the script
that's generating the mail can check), a diff-less replacement mail must
instead be generated (with the usual link to the viewsvn to view the
diffs), so that in all cases the svn-commits-list has a record of the
commit.

Regards,
	Christian