add print of grains

Change-Id: I0358ef2f7b7ed16b472563b27801eb21124c474e
diff --git a/ceph-enforce-weights.groovy b/ceph-enforce-weights.groovy
index 4e418d7..284bcf8 100644
--- a/ceph-enforce-weights.groovy
+++ b/ceph-enforce-weights.groovy
@@ -20,6 +20,8 @@
     return salt.cmdRun(master, ADMIN_HOST, cmd)
 }
 
+def grains
+
 node("python") {
 
     stage('Load cluster information') {
@@ -27,8 +29,8 @@
         saltMaster = salt.connection(SALT_MASTER_URL, SALT_MASTER_CREDENTIALS)
 
         // get list of disk from grains
-        def grains = salt.getGrain(saltMaster, 'I@ceph:osd')['return'][0]
-
+        grains = salt.getGrain(saltMaster, 'I@ceph:osd')['return'][0]
+        common.prettyPring(grains)
 
     }