relax SVN archive

svn+ssh://bugman@.../svn/relax/trunk

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r27797 | bugman | 2015-03-10 09:50:16 +0100 (Tue, 10 Mar 2015) | 6 lines

Fix for bug #23372 (https://gna.org/bugs/?23372), the sequence.read failure with CSV files.

The problem was that the sep argument was not being passed all the way to the backend
lib.io.extract_data() function.
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