Ghouls and ghasts not getting their strength bonus

[Angel]

Ghouls have a strength of 16, and ghasts have a strength of 18.  Unfortunately for them, their "paws" ghoul1.itm and ghast1.itm do not have the use_strength flag set, so they don't get the proper bonuses.

NB: The same is also true for huge-, giant-, sword- and wraith spiders (but not phase spiders for some reason) but their strength is set to 14 which has no effect under 2e rules.  This bug is also present in the old games, except that in BG2 it is fixed for ghasts (but not ghouls).