Changes
Make the default case just be "Language:"
|#default={{msgLanguage:MediaWiki:yourlanguage/{{{1}}}}}
}}</onlyinclude>
== Documentation ==
The cases are all poached from [http://translatewiki.net/w/i.php?title=Special:Translations/loginlanguagelabel&namespace=8 here]. We can't just transclude that system message, because it includes a <tt>$1</tt>. Instead, the default case transcludes a fairly similar system message that doesn't have a <tt>$1</tt>.