* Mirror pandas' to_csv lineterminator instead of line_terminator
(even though it looks a little weird perhaps)
* Remove squeeze argument
* Revert "Merge branch 'remove-squeeze-argument' into patch-2"
This reverts commit 8b9ab5647e244d78ec3471b80ee7c42e019cf347.
* Don't remove the parameter yet since people might use it
* Add pending deprecation warning
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Co-authored-by: David Kyle <david.kyle@elastic.co>