Fix event time to live

Change-Id: I553d75a83a489cf756d86f6b17182b35f09f75ba
Related-Prod: https://mirantis.jira.com/browse/PROD-21307
diff --git a/panko/files/pike/panko.conf.Debian b/panko/files/pike/panko.conf.Debian
index 0b43d1c..ad4300a 100644
--- a/panko/files/pike/panko.conf.Debian
+++ b/panko/files/pike/panko.conf.Debian
@@ -273,7 +273,7 @@
 # forever). (integer value)
 #event_time_to_live = -1
 {%- if server.event_time_to_live is defined %}
-event_time_to_live = server.event_time_to_live
+event_time_to_live = {{ server.event_time_to_live }}
 {%- endif %}
 
 # DEPRECATED: The connection string used to connect to the event database -
diff --git a/panko/files/queens/panko.conf.Debian b/panko/files/queens/panko.conf.Debian
index d92408d..e3b8863 100644
--- a/panko/files/queens/panko.conf.Debian
+++ b/panko/files/queens/panko.conf.Debian
@@ -39,7 +39,7 @@
 # forever). (integer value)
 #event_time_to_live = -1
 {%- if server.event_time_to_live is defined %}
-event_time_to_live = server.event_time_to_live
+event_time_to_live = {{ server.event_time_to_live }}
 {%- endif %}
 
 # DEPRECATED: The connection string used to connect to the event database -