Fix: selected-candidate: check if filters.lst exists

bin/select-candidate

@@ -64,10 +64,9 @@ if [ -z "$CANDIDATE" ]; then
   [ -d "$CANDIDATES" ] && ls -1 $CANDIDATES | sed -e 's/^/    /'
   echo ""
   selected
-  echo ""
   echo "Configured filters:"
   echo ""
-  cat $POOL/filters.lst | sed -e 's/^/    /'
+  [ -f "$POOL/filters.lst" ] && cat $POOL/filters.lst | sed -e 's/^/    /'
   exit 1
 fi