Issue #2248799 by amitgoyal, c31ck, Wim Leers: Fix docs for system_sort_themes
Issue #2248799 by amitgoyal, c31ck, Wim Leers: Fix docs for system_sort_themes

lincgr/Prueba,lincgr/Prueba,lincgr/Prueba,joshkoenig/golden-god-demo,joshkoenig/golden-god-demo,brainhell/drupalglass,brainhell/drupalglass,brainhell/drupalglass,lincgr/Prueba,joshkoenig/golden-god-demo,brainhell/drupalglass,joshkoenig/golden-god-demo,brainhell/drupalglass,joshkoenig/golden-god-demo,joshkoenig/golden-god-demo,joshkoenig/golden-god-demo