Go implementation missing a new line to generated yaml files

[sj14]

At work, we figured out that go-jsonnet is not adding a new line at the end of a generated file, while jsonnet does.
This is somewhat of a problem as we use it in a CI pipeline and compare differences to the generated files, and sometimes people install jsonnet instead of go-jsonnet. It would be nice when go-jsonnet also adds the new line at the end of a generated file.

We create the files with the manifestYamlDoc function.

Reproducible example of the jsonnet file:

local workflows = {
  'example.yaml': {
    name: 'example',
  },
};

{
  [filename]:
    std.manifestYamlDoc(
      workflows[filename],
      indent_array_in_object=true,
      quote_keys=false,
    )
  for filename in std.objectFields(workflows)
}

And go-jsonnet is called like this:

jsonnet -S --multi ./output-folder ./input.jsonnet