* fold-const.c: Follow spelling conventions.
	* function.c: Likewise.
	* config/c4x/c4x.h: Likewise.
	* config/c4x/c4x.md: Likewise.
	* config/frv/frv.md: Likewise.
	* config/rs6000/aix.h: Likewise.
	* config/rs6000/linux64.h: Likewise.
	* config/xtensa/xtensa.c: Likewise.

From-SVN: r72111