Include 'filter' entry for remote#commands

This is useful to remove information about file/dir addition from ClearCase
list checkdout command (`ct lsco -avobs -cview`):

        "Added directory element "inc".
    22-Oct.14:45   mmontu     checkout directory version "/path/inc" from /myView/0 (reserved)
      "Added file element "myFile.h".
    22-Oct.14:47   mmontu     checkout version "/path/inc/myFile.h" from /myView/0 (reserved)