- match FATAL category when unsetting warnings - add a comment explaining why we need to assign empty vars/anon subs   when flushing namespaces (to avoid problems with aliases)
- match FATAL category when unsetting warnings
- add a comment explaining why we need to assign empty vars/anon subs
  when flushing namespaces (to avoid problems with aliases)


git-svn-id: b4be4a41b2a3352907de631eb6da1671a2f7b614@70683 13f79535-47bb-0310-9956-ffa450edef68

Distrotech/mod_perl,Distrotech/mod_perl,Distrotech/mod_perl,Distrotech/mod_perl