Allow URIs specifying CGI scripts to include '/' at the end

(e.g., /cgi-bin/printenv/) on AIX and Solaris (and other OSs
which ignore '/' at the end of the names of non-directories).

PR:    10138


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@93952 13f79535-47bb-0310-9956-ffa450edef68