John Wiegley recently put out a call on Twitter for people to help with the
closing out bugs against Emacs 25.  Seems like a real problem.  I'd like to
help!

But, pardon me for my ignorance, but I'm a bit lost as to how to get
started.  For any bug triage, there's a few necessary steps you have to
learn:

1) How to identify the bugs to be triaged.  I actually don't know the set
of bugs you are interested in.  All the open ones?  Just the ones blocking
emacs 25?  If I'm using the debbugs package, what's the command I use to
display just the set we're interested in?

2) How to triage each bug.  In this case, the basic task if clear: just try
to reproduce against emacs 25.  But if it doesn't reproduce, what then?  Do
we close the bug?  I downloaded and started using the debbugs package, but
AFAICT, it's read-only.  Seems like it should be obvious, but I can't
figure out how to close a bug in either debbugs package, or in the web
interface.

Also, what if it does reproduce?  I guess just a reply saying that it
reproduces?  Or does it need to be tagged in some way?

Sorry, maybe there was a document that explains this all, and I missed it.
If there's isn't such a document, I think it'd be pretty helpful.