2.1.34: Instrument name in header messes w/justification

[Doug Asherman]

Possible bug: if you specify the instrument name in the \header block, 
it can throw off the justification of the music. Setting raggedright to 
##f doesn't fix this; and the problem is stranger than that.

- Doug

\version "2.1.34"

\header {
  title = "Suite No. 3"
  composer = "J.S. Bach"
  instrument = "bbo"
}

melody = \notes \relative c' {
  \time 3/4 \key c \major
  c8-- b16 a g f e d c g e g
  % bar 2
  c,4 ~ c16 d( e f g a b c)
  % bar 3
  d( c b a) g( a b c d e f d)
  % bar 4
  e(f e d c) d( e f g a b c)
  % bar 5
  d( c b a) g( a b c d e f d)
  % bar 6
  e( f e d c) c( b a g f e d)
}

\score {
  \context Staff {
    \clef bass
    \melody
  }
  \paper {
    pagenumber = "no"
  }
}