Update maildir-utils to version 1.8.7 / rev 33 via SR 990950
    
    https://build.opensuse.org/request/show/990950
    by user jubalh + RBrownFactory
    - Update to 1.8.7:
      * ensure the the "current message" is cleared with clearing the
        headers-view; also update mu4e-message-at-point to be stricter
      * only show messages in mu-find that exist
      * load mu4e-view earlier