No output from RESTRICT if no cut sites are found

[David Martin]

If restrict fails to find any cut sites the output file is empty.

As a matter of policy, could applications please produce output even if
the result is negative. A negative result is still a result.

An empty file confuses people as they think they have done something
wrong.

..d


---------------------------------------------------------------------
*  Dr. David Martin                  Biotechnology Centre of Oslo   *
*  Node Manager                      Gaustadalleen 21               *
*  The Norwegian EMBNet Node         P.O. box 1125 Blindern         *
*  tel +47 22 84 05 35               N-0317 Oslo                    *
*  fax +47 22 84 05 01               Norway                         * 
---------------------------------------------------------------------