private function printWarning(IOInterface $io, $message, PuliRunnerException $exception = null)
{
if (!$exception) {
$reasonPhrase = '';
} elseif ($io->isVerbose()) {
$reasonPhrase = $exception->getFullError();
} else {
$reasonPhrase = $exception->getShortError();
}
$io->writeError(sprintf('<warning>Warning: %s%s</warning>', $message, $reasonPhrase ? ': ' . $reasonPhrase : '.'));
}
