Merge pull request #3150 from travier/grub2-15_ostree-atomic-desktops #1900

Job	Run time
build-git-libostree	3m 7s
build	1m 56s
Build, minimum supported toolchain (MSRV)	1m 21s
cargo-deny	19s
build-no-features	1m 24s
	8m 7s

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