You'll notice
File-read source messages now use a colon instead of a dash, e.g. 'read from under X: in Y'
What
Messages that tell you where a file's content came from (of the form 'read from under X') now separate the location details with a colon instead of an em dash.
Why
This is a small formatting cleanup to these messages; it doesn't change what information is shown, only the punctuation used to present it.