WordPress MU

Is there an easy way to allow dashes to be used in blog names. For example:

If your blog was http://somedomain.com/blog/great-videos/

I would rather NOT have to use a URL like http://somedomain.com/blog/greatvideos/ for SEO reasons.

When I try creating a new blog with a dash it produces the error:

"Only letters and numbers allowed"

Any quick fix?

The check is at line 953 of your wp-includes/wpmu-functions.php file.

http://trac.mu.wordpress.org/browser/trunk/wp-includes/wpmu-functions.php#L953

To be honest, I'm not sure how one would add that in there.




preg_match( "/[a-zA-Z0-9]+[a-zA-Z0-9|-]+[a-zA-Z0-9]+/", $blog_id, $maybe );

ok :
a-b
a-b-c-d-e
not ok :
a-
-a
-a-
--a-b-c-