Comment # 8 on bug 993324 from Andreas Stieger

Apparently libzypp is asking gpg2 to send all status output to stdout:

> --status-fd 1

Of course this breaks the consumer of gpg2 output whenever status is added, as
happens in this case. It is a bit unfortunate that the stdout output line is
not yet complete while the status line is written.

The "better" solution would be to have libzypp call gpg2 with status info
written to stderr and to read that as required.

> --status-fd 2

The workaround would be to patch gpg2 to not interleave lines.