Add --ignore-properties and --properties-only options to 'svnlook diff', analogous to the same options of 'svn diff'.
Add --ignore-properties and --properties-only options to 'svnlook diff',
analogous to the same options of 'svn diff'.

* subversion/svnlook/main.c
  (): New options --ignore-properties and --properties-only for svnlook diff.
  (print_diff_tree): Do not produce a diff if --properties-only is set.  Do
   not produce a property diff if --ignore-properties is set.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1407905 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion