Diff zeitwerk-2.1.10 with a zeitwerk-2.2.1

/usr/portage/dev-ruby/zeitwerk/zeitwerk-2.2.1.ebuild 2019-11-02 09:09:00.000000000 +0300
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LICENSE="MIT"
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SLOT="2"
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KEYWORDS="~amd64 ~arm ~arm64 ~x86"
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KEYWORDS="~amd64 ~arm ~arm64 ~hppa ~x86"
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IUSE=""
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all_ruby_prepare() {
Thank you!