[ttml2] Pull Request: modified spec xsl for new copyright

himorin has just submitted a new pull request for https://github.com/w3c/ttml2:

== modified spec xsl for new copyright ==
for copyright starting from 1st Jan. 2023

See https://github.com/w3c/ttml2/pull/1262


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Received on Monday, 26 December 2022 08:19:21 UTC