editor: work around svn 1.7 closing the output fp in apply_textdelta() Calling close() on the output cStringIO when done with patching prevents us to retrieve the result with getvalue(). Note: I found this bug has been fixed already by 794f3e41ec1e. I feel ignoring the close() call is a little cleaner than storing the value before the handler() call for there is no guarantee the handler does not modify the value in its last call. Looking at text_delta.c, it does not in 1.7.1. So, do what you want with this patch.

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