File: reversed-range-endpoints

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grep 2.27-2
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#!/bin/sh
# Ensure that an invalid range like [b-a] evokes exit status of 2.
. "${srcdir=.}/init.sh"; path_prepend_ ../src

fail=0

printf 'Invalid range end\n' > exp
for prog in grep 'grep -E'; do
  # exit status must be 2, not 1
  returns_ 2 $prog '[b-a]' < /dev/null > out 2>&1 || fail=1

  # Remove "$prog: " prefix from actual output.
  sed 's/^[grep]*: //' out > k && mv k out

  compare exp out || fail=1
done

Exit $fail