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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 -->

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```yaml
zuul.ansible.com
```

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


##### ACTUAL RESULTS
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<!--- 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'
```

'''
        Matches the command prompt and responds
        :arg resp: Byte string containing the raw response from the remote
        :arg prompts: Sequence of byte strings that we consider prompts for input
        :arg answer: Sequence of Byte string to send back to the remote if we find a prompt.
                A carriage return is automatically appended to this string.
        :param prompt_retry_check: Bool value for trying to detect more prompts
        :param check_all: Bool value to indicate if all the values in prompt sequence should be matched or any one of
                          given prompt.
        :returns: True if a prompt was found in ``resp``. If check_all is True
                  will True only after all the prompt in the prompts list are matched. False otherwise.
        '''
        single_prompt = False
        if not isinstance(prompts, list):
            prompts = [prompts]
            single_prompt = True
        if not isinstance(answer, list):
            answer = [answer]
        prompts_regex = [re.compile(to_bytes(r), re.I) for r in prompts]
        for index, regex in enumerate(prompts_regex):
            match = regex.search(resp)
            if match:
                self._matched_cmd_prompt = match.group()
                self._log_messages("matched command prompt: %s" % self._matched_cmd_prompt)