another qa/662 failure

[Ken McDonell <kenj@xxxxxxxxxxxxxxxx>]

This time with python 2.7.9

QA output created by 662

=== IPv4 pmwebd testing via python ===
Traceback (most recent call last):
  File "src/test_webapi.py", line 131, in <module>
    test_metric_enumeration(ctx_host,'')
  File "src/test_webapi.py", line 91, in test_metric_enumeration
    line = str(data.decode())
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 50: 
ordinal not in range(128)
...