Fixed a quoting problem

Change-Id: I10c0b529613f6ffd1e870a090a8cccddf9d153f1
diff --git a/vars/pgrep_proc.groovy b/vars/pgrep_proc.groovy
index 9629de4..2ecdda9 100644
--- a/vars/pgrep_proc.groovy
+++ b/vars/pgrep_proc.groovy
@@ -71,6 +71,8 @@
     String iam = getIam('main')
     Boolean ans = true
 
+    throw new Exception("UNUSED: Not yet implemented")
+    
     println("** ${iam}: ENTER")
 
     // var = Gstring throws exception due to cast problem.