Merge r1734125 from trunk:

mod_rewrite: Add QSL|qslast flag to allow rewrites to files with 
literal question marks in their names. 

PR 58777. 





git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1734259 13f79535-47bb-0310-9956-ffa450edef68