Fix build issue for `lncli`
Fix build issue for `lncli`

Error message:

cmd/lncli/commands.go:27: undefined: shell

BitfuryLightning/lnd,aakselrod/lnd,ddustin/lnd,bryanvu/lnd,bryanvu/lnd,AndrewSamokhvalov/lnd,ddustin/lnd,AndrewSamokhvalov/lnd,BitfuryLightning/lnd,LightningNetwork/lnd,LightningNetwork/lnd,aakselrod/lnd