Using Windows & go 1.5.3
The command argument must be last (i.e. come after the input argument, etc.) or it throws an error.
The error/help text even shows that you should run it as go run vgel.go COMMAND ARGS but it only works as go run vgel.go ARGS COMMAND for me.

Using Windows & go 1.5.3
The command argument must be last (i.e. come after the input argument, etc.) or it throws an error.
The error/help text even shows that you should run it as
go run vgel.go COMMAND ARGSbut it only works asgo run vgel.go ARGS COMMANDfor me.