* config/gofast.h, config/interix.h, config/interix3.h,
	config/libgloss.h, config/linux-aout.h, config/linux.h,
	config/lynx-ng.h, config/lynx.h: GNU CC -> GCC.
	* config/kaos.h: "GNU compiler" -> GCC.
	* config/linux-aout.h, config/lynx.h: Clarify comment describing file.

From-SVN: r67997