fix init.sh

Author: fluentcrafter

docker/config/l2-genesis-initialization/init.sh

@@ -7,7 +7,7 @@ cp -T "genesis-besu.json.template" "genesis-besu.json"
 cp -T "/coordinator/coordinator-config-v2.toml" "coordinator-config-v2-hardforks.toml"
 
 fork_timestamp=$(($(date +%s) + 100))
-echo "Fork Timestamp: fork_timestamp"
+echo "Fork Timestamp: $fork_timestamp"
 sed -i "s/%FORK_TIME%/$fork_timestamp/g" genesis-maru.json
 sed -i "s/%FORK_TIME%/$fork_timestamp/g" genesis-besu.json