Add bug #5479 to changelog

CHANGELOG.md

@@ -29,6 +29,7 @@
     Bug #5441: Enemies can't push a player character when in critical strike stance
     Bug #5451: Magic projectiles don't disappear with the caster
     Bug #5452: Autowalk is being included in savegames
+    Bug #5479: NPCs who should be walking around town are standing around without walking
     Bug #5484: Zero value items shouldn't be able to be bought or sold for 1 gold
     Bug #5490: Hits to carried left slot aren't redistributed if there's no shield equipped
     Feature #390: 3rd person look "over the shoulder"