Add informative message to log, as the exception is logged by default
Replaces:
except Exception as exc:
LOG.exception(exc)
With:
except Exception:
LOG.exception("[Description of the failed operation]")
Closes-bug: #1262547
Change-Id: I97cd13e4b32df9a3f9b2e7e1f8946a6a4e0aed3f