DF Linux: stop mistakenly unassigning weapon racks

Fix use of uninitialized variables to stop auto-unassigning racks:

0x7ee948
8B 7C 24 3C
89 C7 90 90

.text:08836948                 mov     edi, eax
.text:0883694A                 nop
.text:0883694B                 nop


0x7eea2f
8B 7C 24 3C
89 C7 90 90

.text:08836A2F                 mov     edi, eax
.text:08836A31                 nop
.text:08836A32                 nop

basically:

  b_squad_id = building->getSpecificSquad();
- if (b_squad_id != squad->id || !building->canUse(some_other_squad_id, 4))
+ if (b_squad_id != squad->id || !building->canUse(b_squad_id, 4))
    unassign(building);

the reason being, some_other_squad_id contains irrelevant garbage at this point


---8<---
This difference file is created by The Interactive Disassembler

Dwarf_Fortress
007EE948: 8B 89
007EE949: 7C C7
007EE94A: 24 90
007EE94B: 3C 90
007EEA2F: 8B 89
007EEA30: 7C C7
007EEA31: 24 90
007EEA32: 3C 90