* Returns LESS compiler set up for use with MediaWiki
*
* @since 1.22
- * @since 1.26 added $extraVars parameter
+ * @since 1.27 added $extraVars parameter
* @param Config $config
* @param array $extraVars Associative array of extra (i.e., other than the
* globally-configured ones) that should be used for compilation.