Newer pod (hello rawhide) complains if you attempt to mix bullets
and non-bullets in the same list:
virsh.pod around line 3177: Expected text after =item, not a bullet
As our intent was to nest an inner list, we make that explicit to
keep pod happy.
* tools/virsh.pod (ENVIRONMENT): Use correct pod syntax.
Turn on verbose debugging of virsh commands. Valid levels are
+=over 4
+
=item * VIRSH_DEBUG=0
DEBUG - Messages at ALL levels get logged
ERROR - Messages at only ERROR level gets logged.
+=back
+
=item VIRSH_LOG_FILE=C<LOGFILE>
The file to log virsh debug messages.