[net.news.b] inappropriate mkdir

henry (06/09/82)

2.6 expire doesn't cope properly with articles having multiple groups.
It tries to make the appropriate links to a single file, but if one
of the directories doesn't exist it tries to mkdir the wrong directory.
An item sent to "net.general,net.news.newsite" was the first item in
net.news.newsite to expire;  the link failed because net.news.newsite
didn't exist, and expire tried to mkdir net.general again!