private static StringBuffer doAppendComment(StringBuffer buffer, String comment)
	{
		buffer.append(SEQUENCE__COMMENT__OPEN).append(comment).append(SEQUENCE__COMMENT__CLOSE);
		return buffer;
	}
private static StringBuffer doAppendComment ( StringBuffer buffer , String comment ) { buffer . append ( SEQUENCE__COMMENT__OPEN ) . append ( comment ) . append ( SEQUENCE__COMMENT__CLOSE ) ; return buffer ; }
Add a comment to a StringBuffer.

If the buffer is null, a new one is created.

@param buffer
StringBuffer to fill
@param comment
the comment
@return the buffer