Make make run run again

[mthssdrbrg]

Embarrassingly simple fix for #112, which took way too long to figure out 🙈

Relevant part from go help run:

$ go help run
usage: go run [build flags] [-exec xprog] package [arguments...]

Run compiles and runs the named main Go package.
Typically the package is specified as a list of .go source files,
but it may also be an import path, file system path, or pattern
matching a single known package, as in 'go run .' or 'go run my/cmd'.

[JoelSpeed]

We are professionals 😉 🙈 😆