Function printGLString

hello-gl2/app/src/main/cpp/gl_code.cpp:32–35

#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)

static void printGLString(const char* name, GLenum s) {
  const char* v = (const char*)glGetString(s);
  LOGI("GL %s = %s\n", name, v);
}

static void checkGlError(const char* op) {
  for (GLint error = glGetError(); error; error = glGetError()) {