Fix 'svn diff FILE' that I broke with rev 751. We need more 'svn diff' regression tests.
Fix 'svn diff FILE' that I broke with rev 751. We need more 'svn diff'
regression tests.

* subversion/libsvn_wc/diff.c
  (svn_wc_diff): Handle both file and directory targets.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@840844 13f79535-47bb-0310-9956-ffa450edef68

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