Make sure the mark we pass to line start is the beginning of a real line,

Make sure the mark we pass to line start is the beginning of a real line,

Tue Aug 25 16:52:47 1998  Owen Taylor  <otaylor@redhat.com>

	* gtk/gtktext.c (recompute_geometry): Make sure the
	mark we pass to line start is the beginning of a
	real line, not a wrapped one.