Scoping of subcommands

```
(defmain (foo create) ...)
(defmain (bar create) ...)
```

It's not clear from the documentation, but the two will interfere even if they're different subcommands. Should one use symbols in different packages? E.g.
```
(defmain (foo my-cli-foo:create) ...)
(defmain (bar my-cli-bar:create) ...)
```
Or is there some way of decoupling the name of a subcommand from the word used to invoke it, e.g.,
```
(defmain (foo (create-foo "create")) ...)
(defmain (bar (create-bar "create")) ...)
```
In any case, the documentation ought to say something about this.