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Copyright (C) 2000-2012 Philippe Troin <webmaster@fifi.org>.
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Undoing ------- You can repeat undoing by the `.' key. So, `u' will undo a single change, while `u . . .', for instance, will undo 4 previous changes. Undo is undoable as in Vi. So the content of the buffer will be the same before and after `u u'.