Tweak some Doxygen markup and comments.
Tweak some Doxygen markup and comments.

* subversion/include/svn_client.h
  (svn_client_checkout2): Mark errors up with @c.
  (svn_client_blame): Correct name of function that replaced this one.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@859663 13f79535-47bb-0310-9956-ffa450edef68

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