Every major Xcode release, strings are being moved around. Now with Xcode 9, a lot of strings that previously appeared in Client/Localizable.strings are now suddenly in "Support Files/Localizable.strings". It may make sense to just ignore how Xcode is exporting things, and simply merge all strings into a single table when we export. That way things are more predictable. We also have a pretty good naming convention now for string identifiers, so we could sort the strings by id to get a probably decent grouping. Note that Pontoon ignores the different string tables so 99% of our L10N contributors work with one long list anyway.
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