Change test script to construct DFBLOB more reliably.  Refs #100314.
Change test script to construct DFBLOB more reliably.  Refs #100314.

svartika/ccnx,cawka/ndnx,ebollens/ccnmp,cawka/ndnx,svartika/ccnx,svartika/ccnx,ebollens/ccnmp,cawka/ndnx,ebollens/ccnmp,svartika/ccnx,cawka/ndnx,cawka/ndnx,svartika/ccnx,svartika/ccnx,ebollens/ccnmp,svartika/ccnx