This fixes an issue we recently encounteredi with nxos_interface:
```
Traceback (most recent call last):
File "/tmp/ansible_JmLoba/ansible_module_nxos_interface.py", line 777, in main
have = map_config_to_obj(want, module)
File "/tmp/ansible_JmLoba/ansible_module_nxos_interface.py", line 606, in map_config_to_obj
obj['speed'] = re.search(r'speed (\d+)', body).group(1)
AttributeError: 'NoneType' object has no attribute 'group'
```
dca6e2d94d