While implementing zero-padded fields I've also implemented
clippings so numbers that are too big won't hurt the binary DTAUS
file.
Added better support for zero-padded numbers. sprintf() from
libc4 had no problems accepting `%08s' while this didn't produce
zero-padded strings with libc5 and libc6. Now we've got our own
routine to handle these. Thanks to Peter Tobias for notifying
me.