updated for version 7.3.1203
Problem:    Matches from matchadd() might be highlighted incorrectly when they
	    are at a fixed position and inserting lines. (John Szakmeister)
Solution:   Redraw all lines below a change if there are highlighted matches.
	    (idea by Christian Brabandt)
Added tag v7-3-1203 for changeset ba328b4a990e