Init step postRun() introduced for 2.9-SNAPSHOT compliance.

Gerrit 2.9 includes the ability for plugins to execute their
initialisation steps after the initial run with a fully populated
DB. We don't use yet this capability but we need anyway to implement
the empty method to be able to load the init step.

Change-Id: Ibc621ea5421c9fb1580421ba3168a2eeb2ad983a

hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/its/InitIts.java

diff --git a/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/its/InitIts.java b/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/its/InitIts.java
index f26a3fc..c7d9251 100644
--- a/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/its/InitIts.java
+++ b/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/its/InitIts.java
@@ -38,4 +38,8 @@
     return TrueFalseEnum.TRUE == section.select("Verify SSL Certificates",
         "sslVerify", TrueFalseEnum.TRUE);
   }
+
+  @Override
+  public void postRun() throws Exception {
+  }
 }