The "logfile" option to BlockdevOptionsGluster will not be in
QEMU until 2.8. Update comment to indicate this.
Reported-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
#
# @debug-level: #optional libgfapi log level (default '4' which is Error)
#
-# @logfile: #optional libgfapi log file (default /dev/stderr)
+# @logfile: #optional libgfapi log file (default /dev/stderr) (Since 2.8)
#
# Since: 2.7
##