Correct objdump command line error handling

bfd_nonfatal is used when a bfd error is to be printed.  That's not
the case for command line errors.

	* objdump.c (nonfatal): Rename to my_bfd_nonfatal.
	(main): Use non_fatal and call usage on unrecognized arg errors.
	Don't set exit_status when calling usage.
1 file changed