Message        <Context> "<identifier>" is not the rightmost
                parameter to "<function>".

 Description    The second argument to va_start was not the rightmost
                parameter in the variable parameter list in the
                function definition.  This is an invalid argument to
                va_start.  Other compilers might not accept this
                program.

 User Action    Update the second argument to va_start to use the
                rightmost parameter.