BasicOTA

ArduinoOTA.onProgress function in example BasicOTA.ino create long log:
`Start updating sketch
Progress: 0%
Progress: 0%
Progress: 0%
Progress: 1%
Progress: 1%
Progress: 2%
Progress: 2%
Progress: 3%
Progress: 3%
Progress: 4%
Progress: 4%
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End`

I suggest changing the code to:

```cpp
ArduinoOTA.onProgress([](unsigned int progress, unsigned int total)
{
static unsigned int old_progress;
unsigned int now_progress;

now_progress = (progress / (total / 100));
if (now_progress >= (old_progress + 10))
{
Serial.printf("Progress: %3u%%\r\n", now_progress);
old_progress = now_progress;
}
});
```

Then the output will be like this:

Start updating sketch
Progress: 10%
Progress: 20%
Progress: 30%
Progress: 40%
Progress: 50%
Progress: 60%
Progress: 70%
Progress: 80%
Progress: 90%
Progress: 100%

End