VOL-5155 - triage failure in periodic-voltha-test-bbsim-2.12

jjb/pipeline/voltha/master/bbsim-tests.groovy
jjb/pipeline/voltha/voltha-2.11/bbsim-tests.groovy
--------------------------------------------------
  o Declare a local var for the Exception msg iam string.
  o No local var definition will result in call vars/getIam.groovy
    which mangles the string '** iam@4d684d2c' as the script address.

vars/pgrep_proc.groovy
vars/pkill_proc.groovy
----------------------
  o Fix boolean constant [fF]alse.

Change-Id: I989b5238926801af9417fee51424af79d7789c7d
diff --git a/vars/pkill_proc.groovy b/vars/pkill_proc.groovy
index 2ac7bde..398444a 100644
--- a/vars/pkill_proc.groovy
+++ b/vars/pkill_proc.groovy
@@ -93,7 +93,7 @@
         process(proc, args)
     }
     catch (Exception err) { // groovylint-disable-line CatchException
-        ans = False
+        ans = false
         println("** ${iam}: EXCEPTION ${err}")
         throw err
     }