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##### SUMMARY
<!--- Explain the problem briefly below -->
When trying to check support of relative imports in modules inside collections, import sanity test fails giving below error
```
Running sanity test 'import' with Python 2.7
ERROR: Found 1 import issue(s) on python 2.7 which need to be resolved:
ERROR: plugins/modules/rubrik_managed_volume.py:8:0: ValueError: Attempted relative import in non-package
WARNING: Skipping sanity test 'import' on Python 3.5 due to missing interpreter.
WARNING: Skipping sanity test 'import' on Python 3.6 due to missing interpreter.
Running sanity test 'import' with Python 3.7
ERROR: Found 1 import issue(s) on python 3.7 which need to be resolved:
ERROR: plugins/modules/rubrik_managed_volume.py:8:0: ImportError: attempted relative import with no known parent package
```

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
ansible-test sanity import

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.9.0b1
  config file = /home/abehl/.ansible/collections/ansible_collections/rubrikinc/rubrik/ansible.cfg
  configured module search path = ['/home/abehl/.ansible/collections/ansible_collections/rubrikinc/rubrik/library']
  ansible python module location = /home/abehl/work/src/anshul_ansible/ansible/lib/ansible
  executable location = /home/abehl/work/src/anshul_ansible/ansible/bin/ansible
  python version = 3.7.3 (default, May 11 2019, 00:38:04) [GCC 9.1.1 20190503 (Red Hat 9.1.1-1)]
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->
Create a collection with modules having relative imports
Try running ansible-test sanity on the same module
<!--- Paste example playbooks or commands between quotes below -->
```yaml

```

<!--- HINT: You can paste gist.github.com links for larger files -->

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
Relative imports should pass

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->
ansible import tests doesn't recognize relative import
<!--- Paste verbatim command output between quotes -->
```paste below

```

"""Import the given python module(s) and report error(s) encountered."""
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
def main():
    """
    Main program function used to isolate globals from imported code.
    Changes to globals in imported modules on Python 2.7 will overwrite our own globals.
    """
    import contextlib
    import os
    import re
    import sys
    import traceback