Japanese translation updates.
Japanese translation updates.

* subversion/po/ja.po: Improve translations after my own review process.
  Also, add 1 term to the translation dictionary.
  Now ja.po has 1533 translated messages against r23233 (Emacs PO-mode
  status: "1534t+289o").


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@863315 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion