Don't use uninitialized ps from BotAI_GetClientState

If BotAI_GetPlayerState returns qfalse, ps is untouched and in
some cases means uninitialized. So don't use it if not valid.

code/game/ai_team.c

@@ -108,8 +108,12 @@ int BotClientTravelTimeToGoal(int client, bot_goal_t *goal) {
 	playerState_t ps;
 	int areanum;
 
-	BotAI_GetClientState(client, &ps);
-	areanum = BotPointAreaNum(ps.origin);
+	if (BotAI_GetClientState(client, &ps)) {
+		areanum = BotPointAreaNum(ps.origin);
+	} else {
+		areanum = 0;
+	}
+
 	if (!areanum) return 1;
 	return trap_AAS_AreaTravelTimeToGoalArea(areanum, ps.origin, goal->areanum, TFL_DEFAULT);
 }