Backport from xs.

xs_html.h

@@ -207,7 +207,7 @@ xs_str *xs_html_render_s(xs_html *h, xs_str *s)
 
         if (h->type == XS_HTML_SCTAG) {
             /* self-closing tags should not have subtags */
-            s = xs_str_cat(s, "/>");
+            s = xs_str_cat(s, "/>\n");
         }
         else {
             s = xs_str_cat(s, ">");

xs_version.h

@@ -1 +1 @@
-/* 2adde1fad4fabb223639e4002a7ff3ec8c1982d7 2023-11-22T13:05:51+01:00 */
+/* 0e2c549f2ac6f4840649332097dc8471a3939cef 2023-11-26T16:44:32+01:00 */