code: protected String processTag(String packageName) {
      final int skipDepth = 6; // skip 6 stackframes to find the location where this was called
      final Thread thread = Thread.currentThread();
      final StackTraceElement trace = thread.getStackTrace()[skipDepth];
      return String.format(TAG_FORMAT, packageName, trace.getFileName(), trace.getLineNumber());
    }
docs: Provide a tag for logging.
  By default this returns a tag with the package name, file name, and line number of the calling
  function. Override this to show different information in the tag.
  
  @param packageName the packageName of the app
  @return the tag to log with