g_malloc0 already clears the memory, so no need for
the additional memset here. And while we're at it,
also convert the g_malloc0 to the preferred g_new0.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>