* Move cdict clevel override to before localdict init

* Update results.csv after dict load changes

simple fix for using bit operator.

If build_dir is set the zstd build complains about md5sum not being found.
Fix this by checking if build_dir is set before checking and using the hash tool
just like in lib/Makefile .

* Perform 64-byte alignment of wksp tables and aligneds internally

* Clean up cwskp_finalize() function to only do two allocs

* Refactor aligned/buffer reservation code, remove ASAN req for alignment reservations

* Change from allocating 128 bytes always to allocating only buffer space as needed for tables/aligned

* Back out aligned/table reservation order restriction

* Add stricter bounds for new/resized wksps, fix comment in zstd_cwksp.h

* Do not emit last partitions of blocks as RLE/uncompressed

* Fix repcode updates within block splitter

* Add a entropytables confirm function, redo ZSTD_confirmRepcodesAndEntropyTables() for better function signature

* Add a repcode updater to block splitter, no longer need to force emit compressed blocks

* Switch to yearless copyright per FB policy
* Fix up SPDX-License-Identifier lines in `contrib/linux-kernel` sources
* Add zstd copyright/license header to the `contrib/linux-kernel` sources
* Update the `tests/test-license.py` to check for yearless copyright
* Improvements to `tests/test-license.py`
* Check `contrib/linux-kernel` in `tests/test-license.py`

Add enum for representing long length ID

Add different dict modes to compression ratio regression test, update results.csv

Fix block splitter minor MSAN warning.

Add ZSTD_defaultCLevel() function to public API

Fixes for the next linux kernel patch version

Recursive block splitting

fix man page typo

fix #2553 detected by @jwilk

Add memory monotonicity test over srcSize