Fix jenkins plugins pillar

Change-Id: Ied4c461e659bbb3fc135973ff4ed9b3dcebdb7a8
diff --git a/jenkins/client/init.yml b/jenkins/client/init.yml
index fdc90b9..ce1916a 100644
--- a/jenkins/client/init.yml
+++ b/jenkins/client/init.yml
@@ -14,25 +14,25 @@
         port: ${_param:jenkins_master_port}
         user: ${_param:jenkins_client_user}
         password: ${_param:jenkins_client_password}
-      plugins:
-        slack:
-        extended-choice-parameter:
-        rebuild:
-        test-stability:
-        build-blocker-plugin:
-        heavy-job:
-        workflow-cps:
-        workflow-remote-loader:
-        workflow-scm-step:
-        docker-workflow:
-        gerrit-trigger:
-        pipeline-utility-steps:
-        discard-old-build:
-        ansicolor:
-        timestamper:
-        build-user-vars-plugin:
-        description-setter:
-        build-monitor-plugin:
-        categorized-view:
-        monitoring:
-        matrix-auth:
+      plugin:
+        slack: {}
+        extended-choice-parameter: {}
+        rebuild: {}
+        test-stability: {}
+        build-blocker-plugin: {}
+        heavy-job: {}
+        workflow-cps: {}
+        workflow-remote-loader: {}
+        workflow-scm-step: {}
+        docker-workflow: {}
+        gerrit-trigger: {}
+        pipeline-utility-steps: {}
+        discard-old-build: {}
+        ansicolor: {}
+        timestamper: {}
+        build-user-vars-plugin: {}
+        description-setter: {}
+        build-monitor-plugin: {}
+        categorized-view: {}
+        monitoring: {}
+        matrix-auth: {}