Fix rnd_boss_restrict=true will trigger a bug.
Let rnd_boss_restrict
use util.getval
interface to make it support defination like rnd_boss_restrict = true
(in data/talents/celestial/combat.lua:130
)
Bug report:
Lua Error: /mod/class/GameState.lua:2218: attempt to call field 'rnd_boss_restrict' (a boolean value)