new TSocket, uninitialised value reported by valgrind

========================================================================================
src:
https://apache.googlesource.com/thrift/+/master/lib/cpp/src/thrift/transport/TSocket.cpp

========================================================================================
code:

boost::shared_ptr<TSocket> socket(new TSocket("192.168.0.1", 9090));
boost::shared_ptr<TTransport> transport(new TBufferedTransport(socket));
boost::shared_ptr<TProtocol> protocol(new TBinaryProtocol(transport));
LancomLocationBasedServices::LbsControlClient client(protocol);
transport->open();

========================================================================================
valgrind --leak-check=yes --track-origins=yes binary

=>

==49066== Conditional jump or move depends on uninitialised value(s)
==49066== at 0x136A443: apache::thrift::transport::TSocket::openConnection(addrinfo*) (TSocket.cpp:309)
==49066== by 0x136B3F8: apache::thrift::transport::TSocket::local_open() (TSocket.cpp:392)
by *********: transport->open()

==49066== Uninitialised value was created by a stack allocation
==49066== at 0x136A14D: apache::thrift::transport::TSocket::openConnection(addrinfo*) (TSocket.cpp:180)