- The `updpkgsums` script is expected to replace the sums using the
algorithm already declared in the PKGBUILD. The `update-aur.sh` script
actually does this by declaring the sums as sha256 in the PKGBUILD file,
but this is not enough to trigger the detection by `updpkgsums`. This
diff fixes this by adding a dummy hash value.
- The `cp -R "${PACKAGE}"/* "${PACKAGE}-upstream"` glob expansion will
not copy the `.SRCINFO` file due to it starting with a dot. This diff
fixes the copy syntax to include all files including the hidden ones.