Function drain_errors

src/platform/linux/graphics.cpp:35–40

  GladGLContext ctx;

  void drain_errors(const std::string_view &prefix) {
    GLenum err;
    while ((err = ctx.GetError()) != GL_NO_ERROR) {
      BOOST_LOG(error) << "GL: "sv << prefix << ": ["sv << util::hex(err).to_string_view() << ']';
    }
  }

  tex_t::~tex_t() {
    if (size() != 0) {