0.9.4.18:

0.9.4.18:
	MORE POLICY
	... upgrade asdf to upstream HEAD
	... make canonicalize-whitespace-1 not touch the file if it
		doesn't need touching
	... automatically run canonicalize-whitespace as part of make.sh
		(this is potentially controversial, as it takes a
		non-trivial amount of time, and also potentially
		scribbles over files which the unwary developer has
		open.  Better, automatic solutions are still being
		sought)