The 'do not' is converted to "don't" because "you" is third-person plural, and 'does not' is converted to "doesn't" because `localhost` is third-person singular. While both are "negative" contractions, we often write this way in WordPress to provide a friendlier tone. That's your English grammar lesson for the day.
Props ankit-k-gupta, iamfriendly.
Fixes#30317.
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