Fix logic error in SlaveJob

[SquishyPandaDev]

Fix the player being unable to assign the maximum number of slaves to certain jobs.

Discord: mightbefluffy

[CognitiveMist]

I'm not sure that this changes the result in a meaningful way, since a < b and !(a >= b) are completely equivalent for integers.

Here's some example code to demonstrate.

[SquishyPandaDev]

Oh dear I made a logic mistake too. And I was over thinking it too face palm. Sorry about that

The problem is this. Lets say you have 7 slaves assigned to milking and you go to add a 8th. That 8th slave will show as having an unavailable time slot. The function as is will get the current number of slaves in that job slot (8) and compare it to the max of 8. 8 < 8 returns false. No free slots.

It should be a <= b. I will change it and resubmit