title: Module-wise verbose logging in Google glog
body: <p>I'm using Google <a href="http://code.google.com/p/google-glog/" rel="noreferrer">glog</a> for logging. I have a file in a directory with path <code>dir/file.cc</code>.</p>
  
  <p>I want to enable verbose logging level 5 just in this file. So I export <code>GLOG_vmodule="file=5"</code> into the environment and then run the program. But glog still doesn't log the <code>VLOG(5)</code> messages in this file. Is there a problem with the way I'm setting <code>vmodule</code>? Can anyone give me an example of how this should be done?</p>