Fix setting of implicit_content_digest argument in cmd/ccnput.
Fix setting of implicit_content_digest argument in cmd/ccnput.

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