code: public void setComment(int lineNumber, String commentString) {
      ResponseString comment = new ResponseString(lineNumber, commentString);
      comments.add(comment);
    }
docs: Sets the non-error message generated in the output of the &lt;git-add&gt; command.
  
  @param lineNumber
  line number at which the message appeared in output.
  @param commentString
  message itself.