vlib: typo in message

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@48961 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/vector/diglib/plus_area.c

@@ -699,7 +699,7 @@ int dig_add_isle(struct Plus_head *plus, int n_lines, plus_t * lines,
 	}
 	else {
 	    if (topo->right != 0) {
-		G_warning(_("Line %d already has area/isle %d to left"), line,
+		G_warning(_("Line %d already has area/isle %d to right"), line,
 			  topo->right);
 		return -1;
 	    }