(DOCSP-50314) Fixing description of log 'Max Percent of Disk' (#883)

[JIRA](https://jira.mongodb.org/browse/DOCSP-50314)

[Staging](https://deploy-preview-883--docs-ops-manager.netlify.app/tutorial/view-logs/#configure-the-log-rotation-settings)

Author: lmkerbey-mdb

source/includes/steps-manage-host-logs-on-disk.yaml

@@ -72,9 +72,15 @@ content: |
 
      * - :guilabel:`Max Percent of Disk`
        - Optional
-       - Log files can take up to this percent of disk space on your
-         MongoDB host's log volume. |mms| deletes the oldest log files
-         once they exceed this disk threshold.
+       - Log files can sum up to this percent of disk space on your
+         MongoDB host's log volume. |mms| deletes log files beginning
+         with the oldest and progressing forward in time until the sum
+         of the sizes of your log files is below this threshold.
+
+         This threshold applies separately to standard MongoDB logs
+         and audit logs. For example, if your standard logs sum to 2%
+         of total disk space but your audit logs sum to less than 2%
+         of total disk space, |mms| only deletes your standard logs.
 
          If you leave this setting empty, |mms| will use the default of
          ``2%``.