Bug with mercenary exp change.

Expected: Merc boosts exp gained during leveling by increasing the exp gained on each kill Actual: Merc boosts exp gained ONLY WHEN IT GETS KILLING BLOW. Human Settler dying to level 27 character + silver construct: Construct getting killing blow: wilderness <65%hp 77%m 18%mv 7692tnl (29.11%) 2 AM> Your horns miss a human settler. Your goring horns misses a human settler. You dodge a human settler's charge. A human settler's charge bounces harmlessly off of your stony hide. A shining silver construct's punch devastates a human settler! A shining silver construct's punch EVISCERATES a human settler! A human settler is DEAD!! You receive 432 experience points (40% bonus). wilderness <27%hp 55%m 97%mv 6946tnl (35.98%) 3 PM> A meandering elf's charge injures you. A meandering elf's charge wounds you. You sure are BLEEDING! A shining silver construct's punch MUTILATES a meandering elf! A meandering elf is DEAD!! You receive 579 experience points (40% bonus). A meandering elf's head is shattered, and his brains splash all over you. Player getting killing blow: wilderness <31%hp 66%m 20%mv 7260tnl (33.09%) 4 AM> gore A human settler's charge wounds you. A human settler's charge bounces harmlessly off of your stony hide. A shining silver construct's punch misses a human settler. A shining silver construct's punch misses a human settler. Your gore DISMEMBERS a human settler! A human settler is DEAD!! You receive 152 experience points (40% bonus). A human settler's feet are sliced from his dead body. You can't pick anything up. The gods give you 13 copper coins for your sacrifice of the corpse of a human settler. No one is around to take coins from you! wilderness <73%hp 61%m 100%mv 7098tnl (34.58%) 2 PM> A meandering elf's charge wounds you. A meandering elf's charge wounds you. Your gore DISMEMBERS a meandering elf! A meandering elf is DEAD!! You receive 152 experience points (40% bonus). A meandering elf splatters blood on your armor. You can't pick anything up. The gods give you 13 copper coins for your sacrifice of the corpse of a meandering elf. No one is around to take coins from you! Let me know if you want the full log.