mm-set-suspend.py suspend doesn't suspend pump

[RobertBaruch]

This is on pump model 751. Stick seems ok. Output of command attached. Any other debugging you'd like to see, please ask!

Note that immediately after the command, running query results in:

#### decoded:
```python
{'status': 'normal', 'bolusing': False, 'suspended': False}

mm-set-supend-out.txt

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