--- oldhttpd-2.4.37/modules/http/http_protocol.c 2018-09-11 10:04:53.000000000 -0400
+++ httpd-2.4.37/modules/http/http_protocol.c 2018-11-26 02:36:03.926389192 -0500
@@ -1528,7 +1528,7 @@
*/
ap_rvputs_proto_in_ascii(r,
- DOCTYPE_HTML_2_0
+ DOCTYPE_HTML_4_01
"\n", title,
"\n\n", h1, "
\n",
NULL);