lnwallet: account for second-level HTLC fee in TestChannelBalanceDustLimit
lnwallet: account for second-level HTLC fee in TestChannelBalanceDustLimit

aakselrod/lnd,AndrewSamokhvalov/lnd,LightningNetwork/lnd,aakselrod/lnd,ddustin/lnd,ddustin/lnd,AndrewSamokhvalov/lnd,LightningNetwork/lnd