fmt(shell): format master.sh

Author: solidnerd

scripts/master.sh

@@ -4,7 +4,7 @@ set -eu
 # Initialize Cluster
 if [[ -n "$FEATURE_GATES" ]]
 then
-  kubeadm init --pod-network-cidr=192.168.0.0/16 --feature-gates $FEATURE_GATES
+  kubeadm init --pod-network-cidr=192.168.0.0/16 --feature-gates "$FEATURE_GATES"
 else
   kubeadm init  --pod-network-cidr=192.168.0.0/16
 fi