TRACKEDINBUGTRAQ --> SUNBUG

[Mark Reinhold]

While drafting the new contribution process it occurred to me, again,
that most people outside of Sun won't know what "Bugtraq" is, though
people do generally know that Sun has a creaky, legacy, internal bug
database that's partly visible via bugs.sun.com.

I think we can make things clearer if we change the resolution value
currently called "TRACKEDINBUGTRAQ" to "SUNBUG", and revise its
description as follows:

    The problem is a duplicate of an existing bug that is being tracked
    only in Sun's internal bug database at this time.  When resolving
    a bug in this manner please add the string "sunbug=1234567" to the
    whiteboard, replacing "1234567" with the actual seven-digit Sun
    bug id.

Make sense?

- Mark