FAQ on PORTREVISION bump?

[Jason Helfman]

>
>
> On 3/28/12 11:39 AM, Chris Rees wrote:
>> You also need to consider that packages are rebuilt on a bump, so if
>> the RUN_DEPEND removal were a real monster, the pkg_add -r users will
>> thank you for that.
> Im guessing perl would qualify for that :-).. needs perl to build, but
> not run.
>
> python, bison, things like that, right?

Maybe we can address anything here that needs tuning/adding/removing:
http://www.freebsd.org/doc/en/books/porters-handbook/book.html#MAKEFILE-NAMING-REVEPOCH

-jgh