t/stdin-no-operand


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#!/bin/sh -e
. t/common.sh

printf '%s\n' > file \
	"${HEAD} HEAD" \
	same \
	"${TAIL}" \
	same \
	"${END} branch"

printf '%s\n' > file.expected \
	same

cp -- file input
normal --reduce < input > output
cmp -s -- file input
diff -u -- output file.expected >&2

also_interactive r < input > output
cmp -s -- file input
diff -u -- output file.expected >&2