mod_auth_anon logs multiple times

PR:	421, 868
Submitted by:	Dean Gaudet
Reviewed by:	Ralf S. Engelschall, Dirk v.Gulik, Ken Coar, Jim Jagielski


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3@78827 13f79535-47bb-0310-9956-ffa450edef68