HeartbeatConfigTest: Update file's google-java-format

Change-Id: I8e63b9d8e21e3b7ead32a84765dee30b44582f0b
diff --git a/src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatConfigTest.java b/src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatConfigTest.java
index a656de1..08821a7 100644
--- a/src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatConfigTest.java
+++ b/src/test/java/com/ericsson/gerrit/plugins/heartbeat/HeartbeatConfigTest.java
@@ -85,7 +85,7 @@
 
   private void deleteFolder(File folder) {
     File[] files = folder.listFiles();
-    if (files != null) { //some JVMs return null for empty dirs
+    if (files != null) { // some JVMs return null for empty dirs
       for (File f : files) {
         if (f.isDirectory()) {
           deleteFolder(f);