patch index with invalid values crashes

[kvalo]

master@wireless-drivers-next > review 9
Retrieving patches (1/1)
      [2/2] mwifiex: ignore calibration data failure               2016-10-21 Amitkumar Ka Deferred
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Under review/Changes requested/Rejected/New/Deferred/Superseded/aWaiting upstream/not aPplicable/rFc/aBort? u
Patch set to Under Review
master@wireless-drivers-next > review 8,10
Traceback (most recent call last):
  File "/home/kvalo/bin/pwcli", line 2095, in <module>
    main()
  File "/home/kvalo/bin/pwcli", line 2092, in main
    pwcli.run_shell()
  File "/home/kvalo/bin/pwcli", line 1883, in run_shell
    args.func(args)
  File "/home/kvalo/bin/pwcli", line 1545, in cmd_review
    patches = self.get_patches_from_ids(args.ids)
  File "/home/kvalo/bin/pwcli", line 864, in get_patches_from_ids
    indexes = parse_list(ids)
  File "/home/kvalo/bin/pwcli", line 123, in parse_list
    start = int(start_str)
ValueError: invalid literal for int() with base 10: '8,10'