Fixes quoting as per https://bz.apache.org/bugzilla/show_bug.cgi?id=62063

Credit: Hendrik Harms <hendrik.harms@gmail.com>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1824143 13f79535-47bb-0310-9956-ffa450edef68