These files have been in the distribution for some time but haven't been
installed. They are good examples of how to do things, so we should
install them.
In the past, OpenRC was a hybrid of a centralized and file-scope
license/copyright structure.
I followed the instructions from the Software Freedom Law Center [1] to
convert to a Centralized structure where possible, for easier future
maintenance.
[1] https://softwarefreedom.org/resources/2012/ManagingCopyrightInformation.html
The posix equivalent of the type command is "command -v", so now we use
that. Thanks to Jonathan Callen <jcallen@gentoo.org> for informing me
wrt the fix.