vnstat: update to 1.18.
vnstat: update to 1.18.

coredumb/void-packages,coredumb/void-packages,NeoChontrix/void-packages,coredumb/void-packages,coredumb/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,coredumb/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,coredumb/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages