* bucomm.c (bfd_nonfatal): Flush stdout before output to stderr.
(bfd_nonfatal_message, report, list_matching_formats): Likewise.
(list_supported_targets): Tidy.
* objdump.c (free_only_list): Formatting.
(slurp_dynamic_symtab): Non-zero exit status for "not a dynamic
object".
(update_source_path): Delete redundant check for NULL filename.
(disassemble_bytes): Error if disassemble_fn returns a value
that won't increment address.
(disassemble_data): Don't capitalize error message.
(read_section_stabs): Likewise.
(main): Return non-zero exit status on bad options.