note 68597 deleted from function.fputcsv by jani

Note Submitter: ---- It's unrealistic to require the field enclosure to be one character because it's very common to have "empty string" as the field delimiter (especially when TAB is used as field delimiter). I tried to use "\0" as the field enclosure, hoping that'd be interpreted as an empty string, but fputcsv (in PHP5) translated it into literal. By the way, fputcsv wrongly adds the field enclosures whenever a field contains a space. The expected behavior should be adding the field enclosures when a field contains a field delimiter.