binutils: spaces -> tabs in CTF parts of objdump and readelf

For readelf particularly, this is more or less whistling in the dark:
there are hundreds of lines where spaces are used where tabs were used
on adjacent lines.

New in v5.

binutils/
	* objdump.c (main): Fix tabdamage.
	* readelf.c (CTF_DUMP): Likewise.
	(options): Likewise.
	(dump_section_as_ctf): Likewise.