[gfortran PR32147] Make module files more predictable

[FX Coudert]

> 2007-10-05  Tobias Schlüter  <tobi@gcc.gnu.org>
>
> 	PR fortran/32147
> 	* module.c (write_symbol): Fix whitespace.
> 	(write_symbol0): Walk symtree from left-to-right instead
> 	breadth-first.
> 	(write_symbol1): Similarly change walk of pointer info tree.
> 	(write_module): Insert linebreak.
> 	* symbol.c (gfc_traverse_symtree): Change to left-to-right order.
> 	(traverse_ns): Likewise.

Looks OK to me. Thanks!

FX