Fix apache log time transformation

Change base from 100k to 1m

Change-Id: I94dfd0aa5f6231944aabbb3c4547887dbe3f54c9
Partial-Bug: PROD-21789
diff --git a/panko/meta/fluentd.yml b/panko/meta/fluentd.yml
index 163d724..13823a1 100644
--- a/panko/meta/fluentd.yml
+++ b/panko/meta/fluentd.yml
@@ -45,7 +45,7 @@
               - name: programname
                 value: panko-wsgi
               - name: http_response_time
-                value: ${ record['http_response_time'].to_i/100000.to_f }
+                value: ${ record['http_response_time'].to_i/10**6.to_f }
         match:
           send_to_default:
             tag: openstack.panko