Fix for issue #1354

[chidanandpujar]

line was deleted as part fix #1335, reverted the changes.

from napalm.junos import JunOSDriver
from pprint import pprint

test_host = JunOSDriver(hostname="xx.xx.xx.xx", username="xyz", password="xyz")
test_host.open()
pprint(test_host.get_interfaces())
test_host.close()


python3 get_interfaces_napalm.py 
{'cbp0': {'description': '',
          'is_enabled': True,
          'is_up': True,
          'last_flapped': -1.0,
          'mac_address': 'x.x.x.x',
          'mtu': 9192,
          'speed': -1.0},
 'demux0': {'description': '',
            'is_enabled': True,
            'is_up': True,
            'last_flapped': -1.0,
            'mac_address': 'None',
            'mtu': 9192,
            'speed': -1.0},

[chidanandpujar]

New pull request submitted with black tool error fixes.