largefiles: report localstore errors with single line warnings messages
The actual hash is also not relevant to report.
This makes verify output with multiple failures easier to process.
basic:
creating
creating
creating
creating
fakeuncacheable:
creating
creating
creating
creating
creating
creating
repository tip rolled back to revision -1 (undo commit)
working directory now based on revision -1
repository tip rolled back to revision -1 (undo commit)
working directory now based on revision -1
setbeforeget:
0
creating
None