Function:   fdate()

               Using fdate(), one can change the date of a file
               that was previously opened using Extend's fopen().

   Syntax:     fdate(<nHandle>[dStamp]) --> dStamp

   Arguments:  <nHandle> is the handle that was previously returned
               by Extend's fopen(), <dStamp> is the date you evt. wish to
               stamp the File with.

   Returns:    the Date the file was last written to.

   Usage:      * - 'Touch' a file.
               if (Handle := fopen(cFileName)) <> -1
                    fdate(handle,date())
                    ftime(handle,time())
               end