Lintian tag information: spurious-fields-in-upstream-signature (type: information)

Description (from lintian-explain-tags)

The packaging includes a detached upstream signature file that contains
spurious fields like Comment: or Version:. They are sometimes added by gpg
--enarmor, especially if you have an older version. Modern versions only
add a Comment: field.

Please generate the signature with gpg --armor --detach-sig using a modern
version instead.

Visibility: info
Show-Always: no
Check: upstream-signature

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