A missed out exception catch in eventio.py

[Aruise]

There are two exception catches for OSError, first one is a pass, second one is unreachable since it is caught and passed already.

kombu/kombu/utils/eventio.py

Lines 72 to 79 in 67588f8

	def unregister(self, fd):
	try:
	self._epoll.unregister(fd)
	except (OSError, ValueError, KeyError, TypeError):
	pass
	except OSError as exc:
	if getattr(exc, 'errno', None) not in (errno.ENOENT, errno.EPERM):
	raise

Probably second one should be caught and OSError in first should be deleted?

[Nusnus]

Care to contribute a fix? :)