title: . gitattributes not working
body: <p>My <code>.gitattributes</code> has the following in order to diff the <strong>XCode</strong> project (which is plain text)</p>
  
  <pre><code>*.pbxproj -crlf -diff -merge
  </code></pre>
  
  <p>But when I diff, still showing binary file</p>
  
  <pre><code># git diff MyApp.xcodeproj/project.pbxproj
  diff --git a/MyApp.xcodeproj/project.pbxproj b/MyApp.xcodeproj/project.pbxproj
  index xxx..xxx xxx
  Binary files a/MyApp.xcodeproj/project.pbxproj and b/MyApp.xcodeproj/project.pbxproj differ
  </code></pre>
  
  <p>My <code>.gitattributes</code> is in the same level of <code>.git</code> folder</p>