protected void appendComment(StringBuilder sb, Comment aNode) {
        sb.append("<!--")
            .append(aNode.getNodeValue())
            .append("-->");
    }
protected void appendComment ( StringBuilder sb , Comment aNode ) { sb . append ( "<!--" ) . append ( aNode . getNodeValue ( ) ) . append ( "-->" ) ; }
Formats a comment for {@link #getShortString}.

@param sb the builder to append to
@param aNode the comment

@since XMLUnit 2.4.0