message: AudioSDPlayer: fix typo
diff: @@ -53,7 +53,7 @@ class AudioSDPlayer_F32 : public AudioStream_F32
  setBlockSize(settings.audio_block_samples);
  }
  AudioSDPlayer_F32(SdFs * _sd,const AudioSettings_F32 &settings) : AudioStream_F32(0, NULL), block_left_f32(NULL), block_right_f32(NULL),
  - sd_prt(_sd)
  + sd_ptr(_sd)
  {
  init();
  setSampleRate_Hz(settings.sample_rate_Hz);
  