Metadata revisions for happy-1.19.10

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No.	Time	User	SHA256
-r1 (happy-1.19.10-r1)	2022-05-08T00:28:50Z	sjakobi	f8d3c70c0a93ebf1709710ef75f21ef00e5363ffd3c70e79197088682a441c5c
	Changed the executable 'happy' component's library dependency on 'mtl' from >=2.2.1 to >=2.2.1 && <2.3
-r0 (happy-1.19.10-r0)	2019-05-09T07:34:07Z	SimonMarlow	ab3e5fe71647b039ade49c03ff5e5eaa362730d9ba5549f55858a0cf81237931