[Buildbot-devel] try default may confuse users

[Dan Kegel]

The 'buildbot try' commmand, by default, runs tests on all builders.

In the use case where a single try scheduler is used to grant
access to all builders, users who forget to specify which project
they want to run a try on will find that they have spammed all
projects with try builds of a patch from some other project.

Might be a good idea to make "no builders" be an error that says how
to list available builders, and add a -a option to mean "all
builders", to avoid this surprise.

p.s. I would have put this in trac, but it doesn't like me anymore.