Follow-up of ged0b19b (Make boolean bitmask type 64-bit wide)

- use G_GINT64_MODIFIER instead of "%ll"
- use G_GUINT64_CONSTANT instead of ULL
- add some missing explicit casts

Change-Id: Ic048d9ee8966ea504ea542cefe55688edcfb2dc7
Reviewed-on: https://code.wireshark.org/review/4644
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>