* config/arm/arm.c, config/rs6000/ppu_intrinsics.h,
	config/spu/spu.c, df-scan.c, fixed-value.c, fold-const.c,
	ginclude/tgmath.h, haifa-sched.c, optabs.c, recog.c,
	sched-deps.c, sched-int.h, system.h, target.h,
	tree-ssa-live.c, tree-vect-transform.c, tree-vectorizer.c,
	tree.def: Fix comment typos.

From-SVN: r128016