CVE-2009-1890

      (tests out okay on 2.2.x with Joe's new testcase, but I'll try to look at it
a little more before voting)


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@790690 13f79535-47bb-0310-9956-ffa450edef68