Add source to sgml-empty-tags

* lisp/textmodes/sgml-mode.el (html-mode): Add "source" as an empty
tag to fix indentation when this element is present (bug#46181).

diff --git a/lisp/textmodes/sgml-mode.el b/lisp/textmodes/sgml-mode.el
index 8465e82b02a9aa277b5d1e1fe049ef28cac08ae6..c50c544cb5452bd7f3f6345a69cf61efdbb65783 100644 (file)
--- a/lisp/textmodes/sgml-mode.el
+++ b/lisp/textmodes/sgml-mode.el
@@ -2402,9 +2402,9 @@ To work around that, do:
 
   (setq-local sgml-empty-tags
              ;; From HTML-4.01's loose.dtd, parsed with
-             ;; `sgml-parse-dtd', plus manual addition of "wbr".
+              ;; `sgml-parse-dtd', plus manual additions of "source" and "wbr".
              '("area" "base" "basefont" "br" "col" "frame" "hr" "img" "input"
-               "isindex" "link" "meta" "param" "wbr"))
+                "isindex" "link" "meta" "source" "param" "wbr"))
   (setq-local sgml-unclosed-tags
              ;; From HTML-4.01's loose.dtd, parsed with `sgml-parse-dtd'.
              '("body" "colgroup" "dd" "dt" "head" "html" "li" "option"