* cgraphunit.c, config/arm/arm.c, config/m68k/m68k.c,
	ipa-inline.c, tree-profile.c, tree-ssa-live.c,
	tree-ssa-math-opts.c, tree-ssanames.c, tree-vect-analyze.c,
	value-prof.c: Fix comment typos.

From-SVN: r121374