======Synopsis:======
__subpackage__ <name>

======Description:======
This command is experimental and will be withdrawn in the future.

The __SUBPACKAGE__ command creates a branch of the current [[PACKAGE]],
named "<parent package>::<name>".  You can then /[[UNLOAD]] this sub-package
without having to unload the parent package.

Although it is not an error to omit <name>, you should always provide one.

======History:======
The __subpackage__ command first appeared in EPIC5-0.0.4.