Translation updates

src/backend/po/pt_BR.po

src/backend/po/zh_TW.po

src/bin/initdb/po/pt_BR.po

src/bin/pg_controldata/po/pt_BR.po

src/bin/pg_controldata/po/zh_TW.po

src/bin/pg_ctl/po/pt_BR.po

src/bin/pg_ctl/po/ru.po

src/bin/pg_ctl/po/zh_TW.po

src/bin/pg_dump/po/pt_BR.po

src/bin/pg_dump/po/ru.po

src/bin/pg_dump/po/zh_TW.po

src/bin/pg_resetxlog/po/pt_BR.po

src/bin/psql/po/pt_BR.po

src/bin/scripts/po/pt_BR.po

src/interfaces/libpq/po/pt_BR.po

src/interfaces/libpq/po/ru.po

src/interfaces/libpq/po/zh_TW.po