title: how to make svn diff to ignore binary files
body: <p>My svn version is 1.8.8, OS is Ubuntu 14.04.</p>
  
  <p>I'm transferring a project from ant to maven, so I delete the jar files in lib directory. When I created a svn diff file for code review, I find the diff file contains lots of binary compare result in it, the content of deleted jar files.</p>
  
  <p>I added "*.jar = svn:mime-application/octet-stream" to ~/.subversion/config, but it didn't work.</p>
  
  <p>How can I make svn diff ignore binary files?</p>