Ferret::Analysis::StemFilter documentation bug

“nl” selects the dutch stemming algorithm, “no” selects the norwegian
(as one would expect).

there’s no inconsistency, which the documentation would suggest (using
“dut” and “nld” for dutch stemming, “nl” or “no” for norwegian).

this is on ferret 0.11.4 at least, i didn’t check earlier versions.

phillip