fix lockfile handling by the cron

process/cron/run-eressea

@@ -13,12 +13,15 @@ if [ -d $REPORTS ]; then
 fi
 mkdir $REPORTS
 $BIN/backup-eressea $GAME
+
+cd $ERESSEA/game-$GAME
 if [ -d test ]; then
   touch test/execute.lock
 fi
 rm -f execute.lock
 $BIN/run-turn $GAME
 touch execute.lock
+
 if [ ! -s $ERESSEA/game-$GAME/orders.$TURN ]; then
   echo "server did not create orders for turn $TURN in game $GAME"
   exit 2