Change-Id: I1f8d83497fb1e50220993bfc267f05d93250d57c
$article: the article that the history is loading for
$context: RequestContext object
-'PageHistoryLineEnding' : Right before the end <li> is added to a history line.
+'PageHistoryLineEnding': Right before the end <li> is added to a history line.
$row: the revision row for this line
$s: the string representing this parsed line
$classes: array containing the <li> element classes