paycheck: improved test script error message

Makes it clear what exactly is not found (i.e. the paycheck.py at the
same location as test_paycheck.sh).

BUG=None
TEST=Error message as expected

Change-Id: I240c75ecb38c1003882aff76a65f92b661f8a607
Reviewed-on: https://gerrit.chromium.org/gerrit/51011
Tested-by: Gilad Arnold <garnold@chromium.org>
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Commit-Queue: Gilad Arnold <garnold@chromium.org>
1 file changed
tree: 7d26ba0cae76a7b701caf02df608b9354606c3b2
  1. scripts/