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Wayne Davison authored
(moved from hard_link_cluster()) that checks the inode/dev of an existing file and either does nothing (when properly linked), or removes the existing file before calling hard_link_one(). - Changed hard_link_check() so that it checks if the master item is marked with FINISHED_LINK (in its hlindex int), and if so, it finishes the current file by calling maybe_hard_link() (and marking it as finished too). Otherwise it marks the item as skipped by setting hlindex to SKIPPED_LINK. - Fixed the outputting of an error in hard_link_one() so that the message is always output when the caller did not request "terse" processing. - Changed hard_link_cluster() so that it marks the master item with FINISHED_LINK and then links only the skipped items (marking them with FINISHED_LINK too).
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