Scripts attached to beams have excess padding at staff edge

[Neil Puttock]

Hello,

When articulation scripts are attached to beams, there is too much padding
when the beams are near the staff edges.

\version "2.11.32"
\paper { ragged-right = ##t }
\relative c'' {
    \voiceOne
    g8-- a-- b-. c-.  %Tenuto marks are too far from beams
    \voiceTwo
    e-- d-- c-. b-.
}

Regards,
Neil