restore *.orig.c to each entry

Under each yyyy/dir there is a file of the form '*.orig.c'
containing the original source code, or as close as we can
get to the original source code.

1988/litmaath/litmaath.orig.c

@@ -0,0 +1,10 @@
+main(argc, argv)
+int	argc;
+char	**argv;
+{
+	while (*argv != argv[1] && (*argv = argv[1]) && (argc = 0) || (*++argv
+		&& (**argv && ((++argc)[*argv] && (**argv <= argc[*argv] ||
+		(**argv += argc[*argv] -= **argv = argc[*argv] - **argv)) &&
+		--argv || putchar(**argv) && ++*argv--) || putchar(10))))
+		;
+}