message: guix: Remove extra \r from all.SHA256SUMS line ending
  guix-attest mistakenly added an extra \r to the line endings in
  all.SHA256SUMS, causing guix-verify to erroneously fail.
diff: @@ -216,7 +216,6 @@ mkdir -p "$outsigdir"
  cat "${sha256sum_fragments[@]}" \
  | sort -u \
  | sort -k2 \
  - | sed 's/$/\r/' \
  | rfc4880_normalize_document \
  > "$temp_all"
  if [ -e all.SHA256SUMS ]; then
  