Fixed infinite loop when a trailing slash is included after a type map

file URL (extra path info).

Submitted by: Petr Lampa and Roy Fielding
Reviewed by: Dean Gaudet


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@77733 13f79535-47bb-0310-9956-ffa450edef68