Fix sphinx-doc#10214: html: invalid language tag was generated for zh_CN

So far, HTML builder output the `language` configuration as a language tag for HTML. But it takes locale string in ANSI C, not IETF language code. This converts locale string to language tag to generate valid language tag for HTML.
tk0miya · Mar 30, 2022 · 89444c0 · 89444c0
1 parent 223b1a9
commit 89444c0
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/CHANGES b/CHANGES
@@ -65,6 +65,8 @@ Features added
 Bugs fixed
 ----------
 
+* #10214: html: invalid language tag was generated if :confval:`language`
+  contains a country code (ex. zh_CN)
 * #10236: html search: objects are duplicated in search result
 * #9962: texinfo: Deprecation message for ``@definfoenclose`` command on
   bulding texinfo document