Upstream has addressed this in release 0.4.3 and later with commit
dc88e96 "Integrate gnulib properly".

Since these versions of patchutils need to stay around for fetchpatch /
fetchpatch2 Fixed-Output Derivations, we'll need to carry these patches.

After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build https://github.com/infinisil/treewide-nixpkgs-reformat-script/archive/a08b3a4d199c6124ac5b36a889d9099b4383463f.tar.gz \
      --argstr baseRev b32a0943687d2a5094a6d92f25a4b6e16a76b5b7
    result/bin/apply-formatting $NIXPKGS_PATH

This reverts commit d550c9071206013cb90ee9317080db82e286f69b.

This changes the output of filterpatch thus affects hashes of any
fetchpatch calls in nixpkgs:

https://github.com/NixOS/nixpkgs/issues/25154

This reverts commit 1e1b68b4a02f7e671b8e56d841b4c0962e5d6be9.