This patch, put together by Manuel Novoa III, is a merge of work

done by Evin Robertson (bug#1105) and work from Manuel to make
usage messages occupy less space and simplify how usage messages
are displayed.

archival/dpkg.c

@@ -840,7 +840,7 @@ extern int dpkg_main(int argc, char **argv)
 		case 'c':
 			return dpkg_configure(packages, status);
 		default :
-			usage(dpkg_usage);
+			show_usage();
 			return EXIT_FAILURE;
 	}
-}
+}