Bug#901548: diffoscope: Add lz4 comparator

[Chris Lamb]

tags 901548 + patch
thanks

Dear Xavier,

Thanks! I was just wondering if you considered submitting this as a
"merge request" on our Gitlab instance?

  https://salsa.debian.org/reproducible-builds/diffoscope

:)


Best wishes,

-- 
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     : :'  :     Chris Lamb
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