Protests! So, we then better live with a switch to edge-select on using

the 'region to loop', and implement the notice using a non-blocking status
line once.

Nice proposal:
http://mke3.net/blender/interface/interaction/statusline_error.png

source/blender/src/editmesh_tools.c

@@ -6389,8 +6389,6 @@ void region_to_loop(void)
 			if(eed->f1 == 1) EM_select_edge(eed, 1);
 		}
 		
-		if(G.scene->selectmode != SCE_SELECT_EDGE)
-			notice("Select mode changed to Edge Select");
 		G.scene->selectmode = SCE_SELECT_EDGE;
 		EM_selectmode_set();
 		countall();