Update elasticsearch index to commits

The introduction of auditlog information via the kibana dashboard
importer caused the generic 'gerrit' index to be superseded by the more
relevant 'gitcommits' index.

Feature: Issue 10186
Change-Id: I25912566b963ea164e97b7ff4da7403ed9fb2c9c

src/main/scala/com/googlesource/gerrit/plugins/analytics/wizard/AnalyticDashboardSetup.scala

diff --git a/src/main/scala/com/googlesource/gerrit/plugins/analytics/wizard/AnalyticDashboardSetup.scala b/src/main/scala/com/googlesource/gerrit/plugins/analytics/wizard/AnalyticDashboardSetup.scala
index fd038be..d8f1ef0 100644
--- a/src/main/scala/com/googlesource/gerrit/plugins/analytics/wizard/AnalyticDashboardSetup.scala
+++ b/src/main/scala/com/googlesource/gerrit/plugins/analytics/wizard/AnalyticDashboardSetup.scala
@@ -49,7 +49,7 @@
       Password(etlConfig.password),
       Username(etlConfig.username)
     ).filter(_.value.isDefined) mkString " "
-    s"$args --writeNotProcessedEventsTo file:///tmp/failed-events -e gerrit"
+    s"$args --writeNotProcessedEventsTo file:///tmp/failed-events -e gitcommits"
   }
   private val dockerComposeTemplate = {
     s"""