shithub: trueawk

ref: d7f37646965ee26214da0e1d97f3c1d54349ae2d
dir: /bugs-fixed/decr-NF.awk/

BEGIN {
	$0 = "a b c d e f"
	print NF
	OFS = ":"
	NF--
	print $0
	print NF
	NF++
	print $0
	print NF
}