I often read such messages. But what is the reason of the replacement? I only know that a space bar cannot be at the end of a string because it will be ignored and you will get the string without the space bar.
<string name="lorem">Lorem and a space bar </string>
But what about everything else? I don't see any visual difference between
<string name="loading">Loading…</string>
and
<string name="loading">Loading...</string>