Set the background on the action view cell renderer here, not in init, so

Set the background on the action view cell renderer here, not in init, so

Wed Mar 10 23:40:15 2004  Matthias Clasen  <maclas@gmx.de>

	* gtk/gtkentrycompletion.c (_gtk_entry_completion_popup): Set the background
	on the action view cell renderer here, not in init, so that a) we catch
	style changes, and b) we get the real style, not the default one.
	Partial fix for #127648, reported by Dave Bordoley.