/** Returns the displayable form of the pattern for this xline,
* e.g. '*\@foo' or '*baz*'. This must always return the full pattern
* in a form which can be used to construct an entire derived xline,
* even if it is stored differently internally (e.g. GLine stores the
* ident and host parts seperately but will still return ident\@host
/** Returns the displayable form of the pattern for this xline,
* e.g. '*\@foo' or '*baz*'. This must always return the full pattern
* in a form which can be used to construct an entire derived xline,
* even if it is stored differently internally (e.g. GLine stores the
* ident and host parts seperately but will still return ident\@host