merge these changes from 2.1:

*) Fix the building of cgi command lines when the query string
   contains '='.  PR 13914  [Ville Skytt� <ville.skytta@iki.fi>,
   Jeff Trawick]

PR:                13914
Submitted by:	   Ville Skytt� <ville.skytta@iki.fi>, Jeff Trawick


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/APACHE_2_0_BRANCH@97857 13f79535-47bb-0310-9956-ffa450edef68