C1001   Return statement with no value in function

    Problem:  A RETURN statement with no return value was specified
    within a function definition.  In Clipper, all function definitions
    should return a value even though the return value may not be used in
    the calling routine.  If a RETURN statement is specified without a
    return value, a NIL is assumed.

    Solution:  Change the declaration from FUNCTION to PROCEDURE or add
    the missing return value to the erroneous RETURN statement.