/sys$common/syshlp/helplib.hlb CC, Messages, FORMATATTR  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Message        <Context> the arguments to <function name> do not
                match the assertions of its format attribute.  The
                format argument or the argument preceeding the first
                argument to check is missing.

 Description    The format attribute of this function asserts that
                the format argument exists and will be checked if it
                is a string constant.  The first argument to check,
                if non-zero, identifies the argument corresponding to
                the ellipsis in the function declaration and asserts
                that the argument preceeding it exists.

 User Action    Modify either the function call or the format
                attribute so that they match.