Add the correct language tag for interoperation with the Taiwanese

versions of MSIE and Netscape.

PR:             7142
Submitted by:   Clive Lin <clive@CirX.ORG>


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@88270 13f79535-47bb-0310-9956-ffa450edef68