[PATCH] fix integer truncation in hp2ps output

[Simon Marlow]

> The following patch fixes a bug in hp2ps that causes silly 
> numbers like
> 
>   84,762,122,-646
> 
> to appear in the heading.  The problem was that 'n' is (can 
> be) a 64-bit
> type, and converting to an int before doing the modulo gives rounding
> errors.
> 
> The fix is courtesy of Ralf Wildenhues (Ralf.Wildenhues at gmx.de).

Thanks; committed.

Cheers,
	Simon