vr(4) bug fixing

[Sepherosa Ziehau <sepherosa@xxxxxxxxx>]

Hi all,

Following patch fixes two bugs which will make vr(4) hang:
http://leaf.dragonflybsd.org/~sephe/vr2.diff

This patch has been tested with RhineII

Please review it and give it a try

If no objection comes, this patch will be in repos next Monday

Best Regards,
sephe

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