What's the proper procedure for responding to PRs with patches?

[Paul Schmehl]

A PR was submitted recently regarding a problem with a port that I maintain.  I 
deteremined what the problem was and created a patch for the Makefile and a 
replacement for one of the patch files in FILESDIR.  I then started send-pr, 
changed the TO; address to bug-followups and added a subject line referring to 
the existing PR.

A new PR was opened anyway.  Obviously I don't know how to do this correctly. 
What is the correct procedure when you want to respond to an existing PR by 
submitting a patch for the problem?

-- 
Paul Schmehl (pauls at utdallas.edu)
Senior Information Security Analyst
The University of Texas at Dallas
http://www.utdallas.edu/ir/security/