Japanese translation updates.
Japanese translation updates.

* subversion/po/ja.po: Review, improve, and reformat all of the help
  messages for svn, svnadmin, svndumpfilter, svnlook, svnserve, and
  svnversion. Also, add a term to the translation dictionary. For detail
  of the formating rule used to reformat, see the head comment part of
  the file.
  ja.po still has 1354 translated messages against r14567 (Emacs PO-mode
  status: "1355t105o").


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@854642 13f79535-47bb-0310-9956-ffa450edef68

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