[cvs-nhc98] patch applied (hat): Hat: speed up file archiving by 40%.

[Malcolm Wallace]

Fri Mar  9 08:38:00 PST 2001  malcolm
  * Hat: speed up file archiving by 40%.
    I discovered that ftell() is extremely expensive.  Replace most
    calls to ftell() with an internal counter to track the position
    in the file.

    M ./src/old/runtime/fileformat.c -75 +80