A.172. Release 3.3.22

A.172.1. Bug fixes

• Fix "write on backend 0 failed with error :"Success"" error. (bug 403) (Tatsuo Ishii)

  Don't treated it as an error if write() returns 0.

• Fix segfault in per_node_error_log() on armhf architecture. (Tatsuo Ishii)

  Patch provided by Christian Ehrhardt.