I also got the following error in one of the translations module:
root# ./bootstrap
./bootstrap: Bootstrapping from checked-out bison sources...
./bootstrap: getting translations into po for bison...
19:32:50 URL:http://www.iro.umontreal.ca/translation/registry.cgi?
domain=bison [64828] -> "po/bison.html" [1]
...
19:33:40 URL:http://www.iro.umontreal.ca/translation/teams/PO//id/
bison-2.3a.id.po [20514/20514] -> "po/id.po" [1]
po/id.po:9: nplurals = 1...
po/id.po:74: ...but some messages have 2 plural forms
msgfmt: found 1 fatal error
./bootstrap: omitting translation for id
...
Hans Aberg
