Cannot declare multiple directories with `go-bindata-assetfs` or a single child.

[joegasewicz]

Problem: I want to declare multiple files when using the go-bindata-assetfs cmd:

$ go-bindata-assetfs dist/... public/...

OR I want to only specify the dist directory:

$ go-bindata-assetfs dist/...

But because the dist directory has a public directory sibling, the assetFS() will randomly pick either the dist or public directory to generate from.

Issue: The call to assetFS() will randomly pass back only the first item in the _bintree.Children slices, which means that if I pass a top level directory with multiple children directories assetFS() will not return the desired results.

Requested changes:

I want to be able to define each static path to serve manually, either multiple of a single child directory. This example demonstrates serving 2 static directories but even if i just want to serve a single directory assetFS() will not work if there are more than 1 directories present:

func main() {
	r := mux.NewRouter() // Example uses "github.com/gorilla/mux"
    // Here we want to serve static content from 2 directories
	r.PathPrefix("/dist").Handler(http.StripPrefix("/dist", http.FileServer(AssetDIR("dist"))))
	r.PathPrefix("/public").Handler(http.StripPrefix("/public", http.FileServer(AssetDIR("public"))))
    // rest of server code...
	server := &http.Server{ Addr:    ":7777", Handler: r, }
	server.ListenAndServe()
}