Periodic testing fix.

Remove escape char from quoted shell text, jenkins failing on syntax.
Added a note to revisit find replaced by mv(ls) logic.  Altering file
copy command was a false positive, root problem to research is why
did sources not eixst when the copy command was invoked.

Change-Id: I6e27916ad875336880e5350b0f160ab67017720b
diff --git a/jjb/pipeline/voltha/master/bbsim-tests.groovy b/jjb/pipeline/voltha/master/bbsim-tests.groovy
index 171648b..6a2330f 100644
--- a/jjb/pipeline/voltha/master/bbsim-tests.groovy
+++ b/jjb/pipeline/voltha/master/bbsim-tests.groovy
@@ -303,6 +303,10 @@
       }
       steps{
         sh """
+        # [TODO] - why is this platform specific (?)
+        # [TODO] - revisit, command alteration has masked an error (see: voltha-2.11).
+        #          find will fail when no filsystem matches are found.
+        #          mv(ls) succeded simply by accident/invoked at a different time.
         mv `ls $WORKSPACE/voltctl/release/voltctl-*-linux-amd*` $WORKSPACE/bin/voltctl
         chmod +x $WORKSPACE/bin/voltctl
         """