hostname variable correction

loki-system-logs.sh

@@ -26,7 +26,7 @@ scrape_configs:
   - targets:
       - localhost
     labels:
-      host: ${HOSTNAME}
+      host: \${HOSTNAME}
       job: varlogs
       __path__: /var/log/*log
 - job_name: journal
@@ -35,7 +35,7 @@ scrape_configs:
     max_age: 24h
     path: /var/log/journal
     labels:
-      host: ${HOSTNAME}
+      host: \${HOSTNAME}
       job: systemd-journal
   relabel_configs:
     - source_labels: ['__journal__systemd_unit']