#45 LABELs should translate \n appropriately

[James Lin]

(PilRC 3.2)

A LABEL with an embedded '\n' character is rendered with a
missing character box instead of a desired newline. Using
'\r' instead has the desired effect.

(IIRC this is due to an inconsistency in Palm OS, but
even if that's the case, it would be nice if PilRC
shielded people from it.)