The head drives me crazy.

The head utility has different behavior on h-files which I generated and SIO supplied. Its -n option works well with SIO h-files, but always returns one more line when dealing with h-files created by local GAMIT run (cmon/bjgp). What the hell is it doing? I don't think the format of those h-files are different. They are all the same, ASCII, unit style line ending. Did I miss someting?