Brazilian portuguese translation update.
Brazilian portuguese translation update.

 * subversion/po/pt_BR.po:
   Update translation to r20924.
   Fixed 7 fuzzy translations.

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