operation_tests.cpp:  Use BOOST_CHECK instead of BOOST_REQUIRE in margin_call_limit_test
operation_tests.cpp:  Use BOOST_CHECK instead of BOOST_REQUIRE in margin_call_limit_test

oxarbitrage/bitshares-core,bitsuperlab/cpp-play2,peertracksinc/muse,pmconrad/graphene,abitmore/bitshares-2,peertracksinc/muse,bitshares/bitshares-2,bitsuperlab/cpp-play2,peertracksinc/muse,pmconrad/graphene,oxarbitrage/bitshares-core,abitmore/bitshares-2,pmconrad/graphene,oxarbitrage/bitshares-core,bigoc/openchain,bigoc/openchain,bigoc/openchain,bitshares/bitshares-2,peertracksinc/muse,bitshares/bitshares-2,cryptonomex/graphene,abitmore/bitshares-2,pmconrad/graphene,oxarbitrage/bitshares-core,bigoc/openchain,cryptonomex/graphene,bitshares/bitshares-2,cryptonomex/graphene,abitmore/bitshares-2,bitsuperlab/cpp-play2