mono/mono — pull request #1247 by madrang (2014-08-31 03:01:59+00:00)
Title: SafeHandle.Dispose(bool) allow for multiple calls.

IDisposable design pattern specify that the implementation of Dispose() and Dispose(bool) should allow for the method to be called more than once.

I wasn't sure if Close should also allow for multiple calls. So Close still have the old behaviour of throwing ObjectDisposedException.