title: What does _M mean in svn status result
body: <p>i used "svn merge" command to merge the code change from branch to trunk. After merge finished, i found some files which are not modified in branch were makred "M" in trunk. i diff these files and get below result(for example);</p>
  
  <pre><code>xxxxx$ svn diff knife.sh
  
  Property changes on: knife.sh
  ___________________________________________________________________
  Modified: svn:mergeinfo
      Merged /branches/development/LTE1227/knife.sh:r12198-14851
  </code></pre>
  
  <p>When i commit the code, i found these file was marked as "_M" in svn editor() like below</p>
  
  <pre><code>   2 --This line, and those below, will be ignored--
     ... ...
     10 _M   xxx.sh
     11 _M   knife.sh
     ... ...
  </code></pre>
  
  <p>What does _M mean in svn editor? And I don't want to commit these changes and how i can remove these "_M" files from commit list?</p>