libxt_dscp: fix save of negated dscp match rules

As pointed out by Vyacheslav Garashchenko, iptables-save does not
save negated dscp matches properly.  Fix below.

This closes bugzilla #533.

Phil

Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
1 file changed