libgpg-error: workaround no stdout atexit with constructor prior to N (#1017)

[termux-packages] / packages / coreutils / tests / tails-c-flag.sh

# https://github.com/termux/termux-app/issues/232
set -e -u

RESULT=$(echo -n 123456 | tail -c 3)
if [ "$RESULT" != 456 ]; then
        echo "Test failed - expectd 456, got $RESULT"
        exit 1
fi