[Dovecot] fts = squat solr

I don't know if this was supposed to have changed with dovecot2, but http://wiki.dovecot.org/Plugins/FTS shows

fts = squat solr

so, since I have the lucene plugin—"fts = lucene" works by itself—I tried

fts = squat lucene

but:

$ doveadm index '*' doveadm(dave): Error: fts: Failed to initialize backend 'squat lucene': Unknown backend

So, is that syntax obsolete, is the wiki wrong, or am I doing something wrong?

-- Dave Abrahams BoostPro Computing Software Development Training http://www.boostpro.com Clang/LLVM/EDG Compilers C++ Boost