[new port] usage of shar command

[Joe]

3.6 Submitting the port

Now that you are happy with your port, the only thing remaining is to 
put it in the main FreeBSD ports tree and make everybody else happy 
about it too. We do not need your work directory or the pkgname.tgz 
package, so delete them now. Next, simply include the output of shar 
`find port_dir` in a bug report and send it with the send-pr(1) program 
(see Bug Reports and General Commentary for more information about 
send-pr(1)). Be sure to classify the bug report as category ports and 
class change-request (Do not mark the report confidential!). Also add a 
short description of the program you ported to the ``Description'' field 
of the PR and the shar to the ``Fix'' field.


After getting my port ready for submitting to the ports system, I read 
the above section from the porters handbook and come to a show stopper.

I can not figure out just what the author was trying to say with
"output of shar `find port_dir`"

Can someone explain how the shar command is intended to be used to 
create the file that gets send with the [new port] pr?