Update changed messages in the Norwegian nb.po file.
Update changed messages in the Norwegian nb.po file.

* subversion/po/nb.po
  Update messages changed in r10970, r10987.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion