small space remains when lyric hyphen is removed

[Wilbert Berendsen]

Hi,

when lyric syllabes are close to each other, LilyPond can remove the hyphen, 
which is nice.

But unfortunately, there sometimes remains a small space, which can be 
confusing because the syllabes then look like two words instead of one.

(E.g. try this in 2.12 or 2.13)

\relative c' {
  c4. e
}
\addlyrics {
  re -- joice
}

What I'm looking for is a way to really concatenate the syllabes if LilyPond 
decides to remove the hyphen, including kerning, like \concat does.

Does anybody have a hint for a strategy to solve this?

Thanks, best regards,
Wilbert Berendsen

-- 
Frescobaldi, LilyPond editor for KDE: http://www.frescobaldi.org/
Nederlands LilyPond forum: http://www.lilypondforum.nl/