SymfonyLockAdapter throws Exception with wrong information

[taka-oyama]

Please see

https://github.com/GoogleCloudPlatform/google-cloud-php/blob/master/Core/src/Lock/SymfonyLockAdapter.php#L63

The code block for catching and throwing the error looks like below

throw new \RuntimeException($ex->getMessage());

This tells me almost nothing about the actual exception that was thrown.

Is there a reason why it's handled this way?

[dwsupplee]

There's no good reason we can't add more detail to the exception here, we'll get that fixed soon.