Pass Gerrit-SshModule as manifest entry

Change-Id: I17f2b75612acec66101bd1818a5122cf65eff8f7

BUCK

diff --git a/BUCK b/BUCK
index cfbc111..4d48a44 100644
--- a/BUCK
+++ b/BUCK
@@ -1,4 +1,7 @@
 gerrit_plugin(
   name = 'helloworld',
   srcs = glob(['src/main/java/**/*.java']),
+  manifest_entries = [
+    'Gerrit-SshModule: com.google.gerrit.plugins.HelloWorldCommandModule'
+  ]
 )