shithub: kwa

ref: 52a6023c85229ee680e0cb53df168cac214a915e
dir: /test/t.do/

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NF > 0 {
	t = $0
	gsub(/[ \t]+/, "", t)
	n = split($0, y)
	if (n > 0) {
		i = 1
		s = ""
		do {
			s = s $i
		} while (i++ < NF)
	}
	if (s != t)
		print "bad at", NR
}