[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3394: Fix test failures on tahoe --version and Python 3.7 and 3.8

[Tahoe-LAFS]

#3394: Fix test failures on tahoe --version and Python 3.7 and 3.8
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     Reporter:  jaraco       |      Owner:  GitHub <noreply@…>
         Type:  enhancement  |     Status:  closed
     Priority:  normal       |  Milestone:  Support Python 3
    Component:  code         |    Version:  n/a
   Resolution:  fixed        |   Keywords:
Launchpad Bug:               |
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Changes (by exarkun):

 * keywords:  review-needed =>


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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3394#comment:6>
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