Pete Bacon Darwin f0af387f6c fix(localize): ensure required XLIFF parameters are serialized (#38575)
When extracting i18n messages from source code, the XLIFF
serializers were missing some required attributes on the `<file>`
element.

This commit re-introduces the `original` property to each of XLIFF 1.2
and 2.0 serializers. Also it adds in the required `id` property for the
XLIFF 2.0 seralizer.

Fixes #38570

PR Close #38575
2020-08-25 15:14:19 -07:00
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