Fixed a subscriber FD leak when running tests.
This FD leak would only surface when running tests. We hold on to
a reference of the \`Connection\` object in the client so that it is
not destroyed while the connection is active. When running tests,
the IP:Port of libprocess remain the same which
Repository: mesos
Updated Branches:
refs/heads/master d6a2c8783 -> 44e10cb2a
Fixed the flaky `MasterAPITest.Subscribe` test.
The test was flaky because `Clock::settle()` does not ensure
that data in flight (on the wire) is also flushed. Hence, sometimes
the update used to be sent by the
