fix formatting of opensearch unitfile --env flags

Author: sjpb

ansible/roles/opensearch/templates/opensearch.service.j2

@@ -19,7 +19,10 @@ ExecStart=/usr/bin/podman run \
     --volume {{ opensearch_config_path }}/internal_users.yml:/usr/share/opensearch/config/opensearch-security/internal_users.yml:U \
     --volume {{ opensearch_config_path }}/opensearch.yml:/usr/share/opensearch/config/opensearch.yml:U \
     --volume {{ opensearch_config_path}}/certs:/usr/share/opensearch/config/certs:U \
-    --env node.name=opensearch --env discovery.type=single-node --env bootstrap.memory_lock=true --env "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m" \
+    --env node.name=opensearch \
+    --env discovery.type=single-node \
+    --env bootstrap.memory_lock=true \
+    --env "OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m" \
     --env DISABLE_INSTALL_DEMO_CONFIG=true \
     opensearchproject/opensearch:{{ opensearch_version }}
 ExecStop=/usr/bin/podman stop --ignore opensearch -t 10