Use g_message() and not g_warning() to display the message that this is a

Use g_message() and not g_warning() to display the message that this is a

2000-08-01  Martin Baulig  <baulig@suse.de>

	* gtk/gtkmain.c (gtk_init_check): Use g_message() and not g_warning()
	to display the message that this is a development version of GTK+.