Automatic merge from submit-queue

update gophercloud that fixed code format

**What this PR does / why we need it**:

mainly to include [#265](https://github.com/gophercloud/gophercloud/pull/265), which fixed the code format including below two files:

* vendor/github.com/gophercloud/gophercloud/openstack/blockstorage/v1/apiversions/urls.go
* vendor/github.com/gophercloud/gophercloud/openstack/compute/v2/images/results.go