Apparently grep now warns about this, causing a test failure:
diff --git a/_build/.sandbox/89b1e78a9e8830d72e7bb32e1bc4651d/default/test/bin/empty-duniverse.t/run.t b/_build/.sandbox/89b1e78a9e8830d72e7bb32e1bc4651d/default/test/bin/empty-duniverse.t/run.t.corrected
index 3380874c..1601055d 100644
--- a/_build/.sandbox/89b1e78a9e8830d72e7bb32e1bc4651d/default/test/bin/empty-duniverse.t/run.t
+++ b/_build/.sandbox/89b1e78a9e8830d72e7bb32e1bc4651d/default/test/bin/empty-duniverse.t/run.t.corrected
@@ -16,6 +16,7 @@ We should be able to successfully lock:
And the lock file should not contain anything to vendor:
$ opam show --just-file -fdepends ./empty-duniverse.opam.locked | grep "\?vendor"
+ grep: warning: stray \ before ?
[1]
Finally, we should be able to pull this lock file, the tool will inform us that
Apparently
grep
now warns about this, causing a test failure: