pg: cleanup backup health output

howto/postgresql.md

@@ -739,7 +739,6 @@ This will run the `check` command on all configured backups:
 
 ```sh
 for stanza in $( ls /var/lib/pgbackrest/backup ); do
-    echo checking $stanza
     hostname=$(basename $stanza .torproject.org)
     sudo -u pgbackrest-$hostname pgbackrest  --stanza=$stanza check
 done
@@ -749,9 +748,8 @@ This can be used to check the status of all backups in batch:
 
 ```sh
 for stanza in $( ls /var/lib/pgbackrest/backup ); do
-    echo checking $stanza
     hostname=$(basename $stanza .torproject.org)
-    sudo -u pgbackrest-$hostname pgbackrest  --stanza=$stanza info
+    sudo -u pgbackrest-$hostname pgbackrest  --stanza=$stanza info | tail -12
 done
 ```