[Bug 1859989] Re: qemu-img has broken output with large snapshot names

[Max Reitz]

Sent a patch: https://lists.nongnu.org/archive/html/qemu-
block/2020-01/msg00376.html

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https://bugs.launchpad.net/bugs/1859989

Title:
  qemu-img has broken output with large snapshot names

Status in QEMU:
  New

Bug description:
  On Qemu 4.1.1 the output of snapshots breaks if the chosen state name
  is too long:

  ```
  # qemu-img snapshot -l /mnt/local/some_image.qcow2
  Snapshot list:
  ID        TAG                 VM SIZE                DATE       VM CLOCK
  1         online_provider_with_dhcp747 MiB 2020-01-15 12:05:01   00:00:45.873
  ```

  Prior to 4.1.1 this used to work with extra tabs for the VM SIZE
  values. The collision is also disabling us from using a regex on top
  of this output to detect the snapshot.

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