Returns the comment describing the purpose of this cookie, or <code>null</code> if the cookie has no comment.
@return the comment of the cookie, or <code>null</code> if unspecified
@see #setComment
See Implementation
Returns the comment describing the purpose of this cookie, or <code>null</code> if the cookie has no comment.
@return the comment of the cookie, or <code>null</code> if unspecified
@see #setComment