Enforce code style for groovy files

Change-Id: I7d8bd721c0e5b744777a5ad92386d36a524f93ec
diff --git a/TestON/JenkinsFile/JenkinsfileTrigger b/TestON/JenkinsFile/JenkinsfileTrigger
index a2996df..0836a97 100644
--- a/TestON/JenkinsFile/JenkinsfileTrigger
+++ b/TestON/JenkinsFile/JenkinsfileTrigger
@@ -31,19 +31,19 @@
 // read the passed parameters from the Jenkins.
 machines = params.machines
 manually_run = params.manual_run
-if( !manually_run ){
-    slackSend( color:'#03CD9F',
-               message:":sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles:\n"
-                        + "Starting tests on : " + now.toString()
-                        + "\n:sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles::sparkles:" )
+if ( !manually_run ){
+    slackSend( color: '#03CD9F',
+               message: ":sparkles:" * 16 + "\n" +
+                        "Starting tests on : " + now.toString() +
+                        "\n" + ":sparkles:" * 16 )
 }
 
 // store the list of the machines into the dictionary.
 machineList = machines.tokenize( "\n;, " )
-machineOn = [:]
+machineOn = [ : ]
 
 // save the triggering job function as a dictionary.
-for (machine in machineList){
+for ( machine in machineList ){
     print( machine )
     machineOn[ machine ] = triggerJob( machine )
 }
@@ -53,7 +53,7 @@
 
 // function that will trigger the specific jobs from current pipeline.
 def triggerJob( on ){
-    return{
+    return {
         jobToRun = on + "-pipeline-trigger"
         build job: jobToRun, propagate: false
     }