- checksum_file-clear-errno.diff: Avoid stale errno to be picked
up and report an error without any error actually occuring.
(This lead to occasional build fails on armv7 on Ubuntu 20.04
and Fedora 32/33, nowhere else.)

- Update to dd_rescue-1.99.10:
* Improve memory clobbers: Ensure we specify full array lengths
used as input to asm (boo#1181402).
* Improve ARM64 crypto by better insn scheduling in CTR calc,
avoiding dependencies and local vars (+40% performance!).
* Apply all ARM64 improvements also to ARMv8 crypto on ARM32.
* Fix warning int formatting on unaligned crypto.
* Address warnings on outdated autoconf usage.

- Update to dd_rescue-1.99.9:
* Includes aliasing fixes from boo#1181402.
* Additional mem clobbers for asm statements (boo#1181402).
* LTO disablement still needed (boo#1176219) on arm due to
differences in compiler flags (-march) per object.
* Fix dependency generation on PPC (preprocessing intrinsics).
* Support xattr decls in sys/xattr.h in addition to attr/xattr.h.
* More stringent check of mem alloc return values.
* Free all memory in error path before exiting (cosmetic).
* Don't need global variable in probe function.
* drop ddr_1998-alg-caseindep.diff, ddr_1998-check-nofail-noxattr.diff,
ddr_1998-ossl11-warn.diff, ddr_1998-sysrandom.diff,
ddr_1998-testhole.diff: patches all merged (they were backports)
- drop fix-aliasing-aarch64.patch: obsolete (fixed differently in new version)