Support multiple elastic system users

salt/common/tools/sbin/so-common

@@ -252,6 +252,7 @@ lookup_salt_value() {
 	key=$1
 	group=$2
 	kind=$3
+	output=${4:-newline_values_only}
 
 	if [ -z "$kind" ]; then
 		kind=pillar
@@ -261,7 +262,7 @@ lookup_salt_value() {
 		group=${group}:
 	fi
 
-	salt-call --no-color  ${kind}.get ${group}${key} --out=newline_values_only
+	salt-call --no-color  ${kind}.get ${group}${key} --out=${output}
 }
 
 lookup_pillar() {