Add a final line-ending if multi-line input string #382
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Without this final line-ending, reordering steps will fail because tables will be added directly to the previous value (see issue #381)
when creating the string from the Container again, we remove any final line-ending if we added it initially to ensure we do not modify the original behavior
This modification only fails on two unit tests. However, I do not know enough about the TOML specifiation to see why this is a problem. Is there anybody that could help out and point me to a direction on how I can fix these final two unit tests?