Options with falesy values are stripped from $storageClient->bucket->objects call

[waynerasmussck]

The problem exhibits itself with the following call:

$generator = $this->storageClient->bucket('some-bucket-identifier)->objects(['prefix' => '0']);

This is caused by this code

Google\Cloud\UriTrait line 52

      $query = array_filter($query);

For example I wanted to find files beginning with "0" (the string zero) but this gets filtered out because the string "0" is treated as false.

[dwsupplee]

Nice work finding this, and sorry for any headaches it may have caused! When you have a moment could you please check out #318 and let me know if it resolves the issue for you?

[waynerasmussck]

Those changes look like they will fix this problem.

[dwsupplee]

Closed by #318