At many places, processutils.ssh_execute() is being invoked to run
a command over ssh and output returned is parsed to get appropriate
information. In this flow, unsanitized output is being expected
where processutils.ssh_execute() was invoked but found that
output like volume details(containing "password" string in its name)
is being masked away with strutils.mask_password(stdout) even though
no error occured during command execution.
This is regression issue from patch[0]. In this fix, stdout and stderr
in processutils.ssh_execute() will be masked only when
ProcessExecutionError exception is thrown i.e. command execution failed
due to some reasons.
[0] https://github.com/openstack/oslo.concurrency/commit/
ae9e05bfc3d7ec867bd6ec78c301f11c2bdd0d5f
Change-Id: I2ce344330905eef437ef3f89a2a01169a30df8ab
Closes-Bug: #1482382
21ae27e66d