Charms of protection above +18 have unpredictable effects

[flend]

Charms of Protection above +18 don't function correctly.

Although power tables go up to +50 correctly, the player [and monster] status effects are short ints. A +18 charm tops up player.status[STATUS_SHIELDED] to 24647 (which is fine), but a +19 charm gives 33273 which overflows and goes negative