Bunch of comment fixes

code/game/ai_main.c

@@ -1280,7 +1280,7 @@ int BotAIShutdownClient(int client, qboolean restart) {
 	}
 
 	trap_BotFreeMoveState(bs->ms);
-	//free the goal state`			
+	//free the goal state
 	trap_BotFreeGoalState(bs->gs);
 	//free the chat file
 	trap_BotFreeChatState(bs->cs);