Reintroduce the empty string to prevent spaces making a mess

Author: OisinKyne

.env.sample.holesky

@@ -177,10 +177,10 @@ CHARON_EXECUTION_CLIENT_RPC_ENDPOINT=http://${EL}:8545
 #CHARON_LOKI_ADDRESSES=
 
 # Charon Cluster Name. Mandatory to send logs with Promtail and metrics with Prometheus.
-#CLUSTER_NAME=
+#CLUSTER_NAME=""
 
 # Charon Cluster Peer. Mandatory to send logs with Promtail and metrics with Prometheus.
-#CLUSTER_PEER=
+#CLUSTER_PEER=""
 
 # Nickname to identify this charon node on monitoring (max 32 characters).
 #CHARON_NICKNAME=""

.env.sample.hoodi

@@ -177,10 +177,10 @@ CHARON_EXECUTION_CLIENT_RPC_ENDPOINT=http://${EL}:8545
 #CHARON_LOKI_ADDRESSES=
 
 # Charon Cluster Name. Mandatory to send logs with Promtail and metrics with Prometheus.
-#CLUSTER_NAME=
+#CLUSTER_NAME=""
 
 # Charon Cluster Peer. Mandatory to send logs with Promtail and metrics with Prometheus.
-#CLUSTER_PEER=
+#CLUSTER_PEER=""
 
 # Nickname to identify this charon node on monitoring (max 32 characters).
 #CHARON_NICKNAME=""

.env.sample.mainnet

@@ -177,10 +177,10 @@ CHARON_EXECUTION_CLIENT_RPC_ENDPOINT=http://${EL}:8545
 #CHARON_LOKI_ADDRESSES=
 
 # Charon Cluster Name. Mandatory to send logs with Promtail and metrics with Prometheus.
-#CLUSTER_NAME=
+#CLUSTER_NAME=""
 
 # Charon Cluster Peer. Mandatory to send logs with Promtail and metrics with Prometheus.
-#CLUSTER_PEER=
+#CLUSTER_PEER=""
 
 # Nickname to identify this charon node on monitoring (max 32 characters).
 #CHARON_NICKNAME=""