inclhack.def (ptx_netswap): New disabled fix, ported from fixinc.ptx.

	* fixinc/inclhack.def (ptx_netswap): New disabled fix, ported from
	fixinc.ptx.
	* fixinc/inclhack.def (undefine_null):  Don't generate \r characters.
	Prettify a little.
	* fixinc/fixincl.x: Regenerate.

From-SVN: r70848