Fixed missed diff in PathfinderGoalPanic.

Originally from the MC 1.8 update, broken afterwards and was no longer calling the correct method.

nms-patches/PathfinderGoalPanic.patch

@@ -6,7 +6,7 @@
      public boolean b() {
 +        // CraftBukkit start - introduce a temporary timeout hack until this is fixed properly
 +        if ((this.a.ticksLived - this.a.hurtTimestamp) > 100) {
-+            this.a.b((EntityLiving) null);
++            this.a.a((EntityLiving) null); // PAIL setLastDamager
 +            return false;
 +        }
 +        // CraftBukkit end