git: implement stub prefetch_parents dirstate method
A recent change (
35b255e474d9) introduced this new required dirstate method
but didn't update the git extension.
rust: leverage .expect() in place of .unwrap() + inline comment
For a better error indication in case we made a mistake.
rust: fix false comment about mpsc::Sender
We need Sync to share the Sender reference across threads.
resourceutil: fix location of line comments
These comments slipped out of position when the sources where formatted with
black in
2372284d9457.