anchor.diff:          ierr=2
           errstrng="write_props"
           if(idout.gt.izero) close(kw)
  -        close(kp)
  +        if(idsk.gt.izero) close(kp)
           return
   c
   c...  error writing to output file
  
positive.code:       end
  c
  c version
  c $Id: write_props.f,v 1.5 2005/03/22 19:59:57 willic3 Exp $
  c
  c Generated automatically by Fortran77Mill on Wed May 21 14:15:03 2003
  c
  
negative.code:         ierr=4
          errstrng="write_props"
          if(idout.gt.izero) close(kw)
          if(idsk.gt.izero) close(kp)
          return
  c
   1000 format(1x,///,
  