Add missing free() in r_proto_expect_content
Add missing free() in r_proto_expect_content

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