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##### SUMMARY
We seem to be having an issue with eos testing and AttributeError: 'NoneType' object has no attribute 'endswith'.

https://object-storage-ca-ymq-1.vexxhost.net/v1/a0b4156a37f9453eb4ec7db5422272df/ansible_79/61779/2a3bc59e39230ad945d42da08a8aad3f91dee027/third-party-check/ansible-test-network-integration-eos-python37/52a7e42/controller/ansible-debug.html#l48225

It looks like self._get_prompt() is None.

##### ISSUE TYPE
- Bug Report

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

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below

```

##### 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 -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml
zuul.ansible.com
```

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


##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below
2019-09-04 20:16:25,014 p=zuul u=31800 | Traceback (most recent call last):
  File "/home/zuul/src/github.com/ansible/ansible/lib/ansible/utils/jsonrpc.py", line 45, in handle_request
    result = rpc_method(*args, **kwargs)
  File "/home/zuul/src/github.com/ansible/ansible/lib/ansible/plugins/connection/network_cli.py", line 389, in update_play_context
    self._terminal.on_become(passwd=auth_pass)
  File "/home/zuul/src/github.com/ansible/ansible/lib/ansible/plugins/terminal/eos.py", line 62, in on_become
    if self._get_prompt().endswith(b'#'):
AttributeError: 'NoneType' object has no attribute 'endswith'
```

description:
      - Configures, in seconds, the amount of time to wait for a command to
        return from the remote device.  If this timer is exceeded before the
        command returns, the connection plugin will raise an exception and
        close.
    default: 30
    ini:
      - section: persistent_connection
        key: command_timeout
    env:
      - name: ANSIBLE_PERSISTENT_COMMAND_TIMEOUT
    vars:
      - name: ansible_command_timeout
  persistent_buffer_read_timeout:
    type: float
    description:
      - Configures, in seconds, the amount of time to wait for the data to be read
        from Paramiko channel after the command prompt is matched. This timeout
        value ensures that command prompt matched is correct and there is no more data
        left to be received from remote host.
    default: 0.1
    ini:
      - section: persistent_connection
        key: buffer_read_timeout
    env:
      - name: ANSIBLE_PERSISTENT_BUFFER_READ_TIMEOUT
    vars:
      - name: ansible_buffer_read_timeout
  persistent_log_messages:
    type: boolean