* modules/filters/mod_proxy_html.c, modules/filters/mod_xml2enc.c:

* modules/filters/mod_proxy_html.c, modules/filters/mod_xml2enc.c:
  Fix gcc 9 warnings in code attempting to reduce gcc warnings.
  (should have used expat...)

mod_xml2enc.c:26:28: warning: "/*" within comment [-Wcomment]
   26 | /* libxml2 includes unicode/*.h files which uses C++ comments */
      |
mod_proxy_html.c:32:28: warning: "/*" within comment [-Wcomment]
   32 | /* libxml2 includes unicode/*.h files which uses C++ comments */
      |

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1864464 13f79535-47bb-0310-9956-ffa450edef68