* src/output.c (prepare_actions): Free tally' and width'.

(prepare_actions): Allocate and free `order'.
* src/symtab.c (symbols_free): Free `symbols'.
* src/scan-gram.l (scanner_free): Clear Flex's scanners memory.
* src/output.c (m4_invoke): Move to...
* src/scan-skel.l: here.
(<<EOF>>): Close yyout, and free its name.

src/symtab.c

@@ -464,6 +464,7 @@ void
 symbols_free (void)
 {
   hash_free (symbol_table);
+  free (symbols);
 }