relnotes: add 6.6.3

tests: fix nondeterministic test failure in test-contrib-perf.t It turns out (not too shockingly!) the kernel sometimes has some work to do, perhaps at the very least context-switching, so asserting the system time is 0.000000 doesn't work.

grep: restore usage of --include/--exclude options The refactor in 4a73df6eb67d accidentally forgot to transform the opts argument for walkopts into a byteskwargs. This resulted in its options being ignored. In particular, the -X/-I pair of options was missing. A simple fix restores its usage. Tests included, of course.

rust-changelog: don't panic on empty file lists

tests: use sha256line.py instead of /dev/random in test-censor.t (issue6858) Sometimes the systems that run our test suite don't have enough entropy and they cannot produce target file of the expected size using /dev/random, which results in test failures. Switching to /dev/urandom would give us way more available data at the cost of it being less "random", but we don't really need to use entropy for this task at all, since we only care if the file size after compression is big enough to not be stored inline in the revlog. So let's use something that we already have used to generate this kind of data in other tests.

tests: make sha256line.py available for all tests This was previously only used in test-revlog-delta-find.t, but it will be useful (and used) in other tests that might need to generate poorly-compressible files.

tests: don't use "status" operand of dd in test-censor.t (issue6858) Some implementations don't have this operand, let's just direct stderr into /dev/null, that's pretty cross-platform. Also specify bs=512 (the default for me), because the default might be different on different systems. Other uses of dd in the tests do specify it, so this is more consistent.

Added signature for changeset 136902b3a95d

Added tag 6.6.2 for changeset 136902b3a95d

relnotes: add 6.6.2