Without this change, it would not be possible to build Validator with Xcode 10.3.
One may argue that SPM is only integrated starting with Xcode 11 (which includes Swift 5.1), but there are other dependency managers relying on the Package.swift manifest like Accio and sometimes they are still used with Xcode 10.3.
Also after having merged this, it would good to release a new version.
Without this change, it would not be possible to build Validator with Xcode 10.3.
One may argue that SPM is only integrated starting with Xcode 11 (which includes Swift 5.1), but there are other dependency managers relying on the
Package.swiftmanifest like Accio and sometimes they are still used with Xcode 10.3.Also after having merged this, it would good to release a new version.