[Box Backup-commit] [boxbackup/boxbackup] 05cbbc: Hopefully fix PowerShell variable syntax

[GitHub]

  Branch: refs/heads/s3_support
  Home:   https://github.com/boxbackup/boxbackup
  Commit: 05cbbcfc64ffc85265c7069fcc7599cc4a74f0d7
      https://github.com/boxbackup/boxbackup/commit/05cbbcfc64ffc85265c7069fcc7599cc4a74f0d7
  Author: Chris Wilson <chris+github at qwirx.com>
  Date:   2017-04-22 (Sat, 22 Apr 2017)

  Changed paths:
    M appveyor.yml

  Log Message:
  -----------
  Hopefully fix PowerShell variable syntax