Exception when cancelling all requests

[catlee]

When you hit the "Cancel" button to cancel all pending requests, the following exception is generated in the log. The requests do end up being cancelled.

2010-06-08 07:19:13-0700 [-] Unhandled Error
	Traceback (most recent call last):
	  File "/tools/buildbot-0.8.0/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-i686.egg/twisted/application/app.py", line 348, in runReactorWithLogging
	    reactor.run()
	  File "/tools/buildbot-0.8.0/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-i686.egg/twisted/internet/base.py", line 1166, in run
	    self.mainLoop()
	  File "/tools/buildbot-0.8.0/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-i686.egg/twisted/internet/base.py", line 1175, in mainLoop
	    self.runUntilCurrent()
	  File "/tools/buildbot-0.8.0/lib/python2.6/site-packages/Twisted-9.0.0-py2.6-linux-i686.egg/twisted/internet/base.py", line 779, in runUntilCurrent
	    call.func(*call.args, **call.kw)
	--- <exception caught here> ---
	  File "/tools/buildbot-0.8.0/lib/python2.6/site-packages/buildbot-0.8.0-py2.6.egg/buildbot/util/eventual.py", line 31, in _turn
	    cb(*args, **kwargs)
	exceptions.TypeError: requestCancelled() takes exactly 3 arguments (2 given)

[catlee]

It also happens when canceling an individual request.

[catlee]

Fixed by  http://github.com/buildbot/buildbot/commit/7101f5b474fd92c9bc2867444293b75d22172526