gas:
	* doc/c-arc.texi: Spell check and correct throughout.
	(Options): Note all relevant options are implicit for ARC v2 EM,
	ARC 700 core 4 v 4.10 replaced by ARC 770 throughout. -mdsp-packa
	description clarified. -mxy description clarified. Use of backtick
	for line separator added. Add ilink and clarify use as
	register. Distinguish between double and single precision
	FPX. Mark relevant directives as deprecated, add back
	.extAuxRegister, .extCondCode, .extCoreRegister and
	.extInstruction, add upper case variants for .option.