InitBugzilla has to do modifications of gerrit.config in run() method

Modifications of gerrit.config done in the postRun() method are not
persisted in the review site.

Change-Id: I11d439a587878ffc2f18ba31d8ba8d667f801b27
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
diff --git a/src/main/java/com/googlesource/gerrit/plugins/hooks/bz/InitBugzilla.java b/src/main/java/com/googlesource/gerrit/plugins/hooks/bz/InitBugzilla.java
index 53f7b5c..1b22bbf 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/hooks/bz/InitBugzilla.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/hooks/bz/InitBugzilla.java
@@ -51,8 +51,9 @@
     this.sections = sections;
   }
 
-  public void postRun() throws IOException, ConfigInvalidException {
-    super.postRun();
+  @Override
+  public void run() throws IOException, ConfigInvalidException {
+    super.run();
 
     this.bugzilla = sections.get(pluginName, null);
     this.bugzillaComment = sections.get(COMMENT_LINK_SECTION, pluginName);