Method LibSsh2Initializer

src/SFML/Network/Sftp.cpp:52–57

struct LibSsh2Initializer
{
    LibSsh2Initializer()
    {
        const std::lock_guard       lock(mutex);
        [[maybe_unused]] const auto result = libssh2_init(0);
        assert(result == 0);
    }

    ~LibSsh2Initializer()
    {