Follow-up from r14480: Update the Norwegian nb.po messages.
Follow-up from r14480: Update the Norwegian nb.po messages.

* subversion/po/nb.po
  Four fuzzy messages updated and found a missing line in the "svn info" 
  help message.

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