tests: only diff the `Cargo.lock` in `test-check-cargo-lock.t`
While not perfect (you could be running tests while developing with a justified
modification to `Cargo.lock`), that use-case is small enough that I don't think
it's really going to be an issue.
This stops the test from failing for unrelated changes when running it locally.
Differential Revision: https://phab.mercurial-scm.org/D9170
--- a/tests/test-check-cargo-lock.t Wed Oct 07 13:24:03 2020 +0530
+++ b/tests/test-check-cargo-lock.t Thu Oct 08 10:07:19 2020 +0200
@@ -8,4 +8,4 @@
However most CIs will run `cargo build` or similar before running the tests, so we need to check if it was modified
- $ testrepohg diff
+ $ testrepohg diff Cargo.lock