Github user srowen commented on the issue: https://github.com/apache/spark/pull/19200 Ah, the problem is the reverse really, but there is a problem. `"...".format(...)` is locale-sensitive in Scala, and this is a place where that matters. The `Utils` method needs to change to use `formalLocal` with `Locale.US`. Open a JIRA for it, and close this and reopen vs `master` with that fix.
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