fix spelling error in comment

git-svn-id: http://svn.apache.org/repos/asf/httpd/httpd/trunk@1571368 13f79535-47bb-0310-9956-ffa450edef68
normalize an ugly construct which somehow manages to return the correct value

git-svn-id: http://svn.apache.org/repos/asf/httpd/httpd/trunk@1571369 13f79535-47bb-0310-9956-ffa450edef68
fix compatibility info for "setifempty".

http://httpd.apache.org/docs/2.4/mod/mod_headers.html#comment_2245



git-svn-id: http://svn.apache.org/repos/asf/httpd/httpd/trunk@1571471 13f79535-47bb-0310-9956-ffa450edef68
xforms


git-svn-id: http://svn.apache.org/repos/asf/httpd/httpd/trunk@1571472 13f79535-47bb-0310-9956-ffa450edef68