sectionMissing directive generates an error.

[Ralph M. Rivera]

The sectionMissing directive as documented here generates an error when tlint is run.

For example:

This code block...

    @sectionMissing('MySection')
        Oh, hai, Mark.
    @endif

Generates, this error...

============
! Syntax error, unexpected T_ENDIF
35 : `        <?php endif; ?>`