Typo in spl-subpages-par-class

https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Spl-subpages-par-class/ksh

Change-Id: I3f4c26a4032741eedc1bfe5fa3f950b742105b92
Merge "Typo in spl-subpages-par-class"