shelltestrunner-1.10: tests/format3/one-failing-test

# Note that this file is called from 'failure-line.test'
# This should be fine.
$  echo "plahh"
> /plahh/
>= 0

# This should be broken.
$  echo "plahh"
> /slahh/
>= 0

# This should be fine.
$  echo "plahh"
> /plahh/
>= 0