Last modified: 2014-11-08 15:45:16 UTC
Installer, as well as in the sidebar of the wiki, please change shape about line(<nowiki>----</nowiki>) which style of Vector. Please see the attachment.
Created attachment 10696 [details] Image of Description
Small bug indeed. One line is good and one isn't.
Confirmed on latest master.
Code in includes/installer/WebInstallerOutput.php needs to be changed to output something with HTML structure closer to the real sidebar.