In the case of a common-law trust of the character described in section
80a–16
(c) of this title, either written approval by holders of a majority of the outstanding shares of beneficial interest or the vote of a majority of such outstanding shares cast in person or by proxy at a meeting called for the purpose shall for the purposes of this section be deemed the equivalent of the vote of a majority of the outstanding voting securities, and the provisions of paragraph (42) of section
80a–2
(a) of this title as to a majority shall be applicable to the vote cast at such a meeting.