Save a few bytes in the conf pool when handling 'ProxyHTMLDoctype' directive with a user defined  FPI
@@ -1181,7 +1181,7 @@ static const char *set_doctype(cmd_parms *cmd, void *CFG,
cfg->doctype = fpi_html5;
}
else {
- cfg->doctype = apr_pstrdup(cmd->pool, t);
+ cfg->doctype = t;
if (l && ((l[0] == 'x') || (l[0] == 'X')))
cfg->etag = xhtml_etag;
else
