Thread:Project:Support desk/Unable to set the site language using command line installer

Hello.

I'm trying to install MediaWiki 1.21.5 using command line installer. So I launch the install.php script:

The '--lang' param seems to have no effect. After the installation completes the 'LocalSettings.php' file has default language code param $wgLanguageCode = "en". How do I change it during the command line installation?