transform the record formatter into the recfile formatter
still a human-readable format and very similar
but also machine-readable – can be processed in GNU Recutils and Relational pipes

 eb3676c6929b133cabb94181ed87729978275800 v0.8

 3c6d560a1d146011b2a95f542470aeb263ba588a v0.9

 0503996934e0cb507c841799b7b87f099867898a v0.10