notification: document 'unknown' severity

This is the severity used for forwarded mails, since we cannot
reasonably infer a priority here.

Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>

diff --git a/notifications.adoc b/notifications.adoc
index 21e13c45285a58fb1dc69ee3f11a9923073ced4d..d60b2b0e64250fec200e09634a2d0af0956085d1 100644 (file)
--- a/notifications.adoc
+++ b/notifications.adoc
@@ -234,7 +234,7 @@ A notification has a associated severity that can be matched.
 * `match-severity warning,error`: Match warnings and error
 
 The following severities are in use:
-`info`, `notice`, `warning`, `error`.
+`info`, `notice`, `warning`, `error`, `unknown`.
 
 
 Examples