Method set_err_buf_cap

cpp-subprocess/subprocess.hpp:1429–1429

  void set_out_buf_cap(size_t cap) { stream_.set_out_buf_cap(cap); }

  void set_err_buf_cap(size_t cap) { stream_.set_err_buf_cap(cap); }

  int send(const char* msg, size_t length)
  { return stream_.send(msg, length); }