change to array for groups

update-NebulaNodeCert

@@ -35,7 +35,7 @@ set -- "${POSITIONAL[@]}" # restore positional parameters
 
 NODENAME=$(${NEBULACERTBINPATH} print -path ${CERTPATH} -json | jq -s .[].details.name | sed 's/["]//g')
 NODEIPS=$(${NEBULACERTBINPATH} print -path ${CERTPATH} -json | jq -s --compact-output .[].details.ips | sed 's/[]["]//g')
-NODEGROUPS=($(${NEBULACERTBINPATH} print -path ${CERTPATH} -json | jq -s --compact-output .[].details.groups | sed 's/[]["]//g' | sed 's/./ /g'))
+NODEGROUPS=$(${NEBULACERTBINPATH} print -path ${CERTPATH} -json | jq -s --compact-output .[].details.groups | sed 's/[]["]//g' | sed 's/./ /g')
 
 echo "Node Name: ${NODENAME}"
 echo "Node IPs: ${NODEIPS}"