PR target/79645
	* common.opt (fdiagnostics-show-labels,
	fdiagnostics-show-line-numbers, fdiagnostics-format=,
	fdiagnostics-minimum-margin-width=, fgnat-encodings=, gas-loc-support,
	gas-locview-support, ginline-points, ginternal-reset-location-views):
	Terminate description text with a dot.
	* config/microblaze/microblaze.opt (mxl-prefetch): Likewise.
	* config/mcore/mcore.opt (m210, m340): Likewise.
	* config/epiphany/epiphany.opt (mprefer-short-insn-regs, mcmove,
	mnops=): Start description text with a capital letter.
	* config/arc/arc.opt (msize-level=): Likewise.
	* config/sh/sh.opt (minline-ic_invalidate): Likewise.
	* config/rs6000/sysv4.opt (mno-toc, mtoc, mno-traceback, mshlib,
	mnewlib): Likewise.
	* config/ft32/ft32.opt (msim): Likewise.
	(mft32b, mcompress): Likewise.  Terminate description text with a dot.
	(mnodiv, mnopm): Terminate description text with a dot.
	* config/c6x/c6x.opt (c6x_sdata): Terminate Enum description with
	a colon.
	* config/i386/i386.opt (prefer_vector_width, instrument_return):
	Likewise.
	* config/rx/rx.opt (nofpu): Remove trailing spaces from description
	text.
lto/
	* lang.opt: Terminate description text with a dot.

From-SVN: r269523