[tahoe-lafs-trac-stream] [Tahoe-LAFS] #2856: remove/conditionalize "shutilwhich" dependency

[Tahoe-LAFS]

#2856: remove/conditionalize "shutilwhich" dependency
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     Reporter:  warner     |      Owner:  daira
         Type:  task       |     Status:  reopened
     Priority:  normal     |  Milestone:  1.13.0
    Component:  packaging  |    Version:  1.12.0
   Resolution:             |   Keywords:
Launchpad Bug:             |
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Changes (by warner):

 * status:  closed => reopened
 * resolution:  fixed =>
 * milestone:  1.12.1 => 1.13.0


Comment:

 oh, let's leave this open (but pushed out of the 1.12.1 milestone), to get
 that `shutilwhich` replaced by a normal twisted `procutils.which` (which
 we're already using in `allmydata.util.iputil` to find `ifconfig`-like
 programs).

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/2856#comment:4>
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