state on dependent bugs if they move from an 'open' to a 'closed'
state, or visa-versa. Also, if there are more than 5 bugs on the
list, then we won't even try to generate the details (doing so only
generates lots of extra mail that is too hard to parse anyway.)
git-svn-id: svn://10.0.0.236/trunk@52588 18797224-902f-48f8-a5cc-f745e15eee43