XWIKI-22274: Bad pt-BR locale in XWikiSyntaxTextFormatting

xwiki-platform-core/xwiki-platform-help/xwiki-platform-help-ui/src/main/resources/XWiki/XWikiSyntaxTextFormatting.pt_BR.xml

@@ -20,10 +20,10 @@
  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 -->
 
-<xwikidoc locale="pt-BR">
+<xwikidoc locale="pt_BR">
   <web>XWiki</web>
   <name>XWikiSyntaxTextFormatting</name>
-  <language>pt-BR</language>
+  <language>pt_BR</language>
   <defaultLanguage>en</defaultLanguage>
   <translation>1</translation>
   <parent>XWiki.XWikiSyntax</parent>