lyric extender problem

[Werner LEMBERG]

[I'm sitting in a train, walking over notation.pdf -- I currently
can't look up the bug database.  In case this problem is already
reported please ignore this mail.]

The attached image is taken from notation.pdf, subsection `Multiple
notes to one syllable'; the bug IMHO is that the extender line is too
short.  Similar to `-- _ _' (with respect to the length), `__ _ _ _'
should construct an extender line up to the `e'.


    Werner