Metadata revisions for happy-1.19.12

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No.	Time	User	SHA256
-r1 (happy-1.19.12-r1)	2022-05-08T00:28:50Z	sjakobi	96c64e5616354c8c05412ad8cf1f4c919502c9947d0f9313253eb75a036f9e8f
	Changed the executable 'happy' component's library dependency on 'mtl' from >=2.2.1 to >=2.2.1 && <2.3
-r0 (happy-1.19.12-r0)	2019-09-03T08:01:49Z	SimonMarlow	acc67bfbf3af87892766781dd064c9447181ea81269a7a1e5fc9ace4a8fa4768