The documentation of the XML file format contains DTD which contains
definition of all allowed elements and attributes. The "include" element
is defined but it's not referenced from the top-level "manifest"
element.
This patch is adding the "include" element into the list of elements of
the top-level "manifest" element.
Change-Id: I33beb8ef2846bbf42ffd42e6ae6888828566d604
Repo is a tool built on top of Git. Repo helps manage many Git repositories,
does the uploads to revision control systems, and automates parts of the
development workflow. Repo is not meant to replace Git, only to make it
easier to work with Git. The repo command is an executable Python script
that you can put anywhere in your path.