Original indentation gets lost when printing non-file node

I've attempted to only print a subset of the original file because I only want to replace that part through VS Code's WorkspaceEdits (I'm developing a VS Code extension). Replacing the whole file puts more pressure on the VS Code as it has to recompute syntax highlighting, code lenses, and more. And I know which part of the file I'd like to touch - so it's best to focus on that part.

However, I've discovered that in such a situation Recast dedents my result and removes the original indentation of this node.

**Repro case**

https://codesandbox.io/s/affectionate-curie-dvwykb?file=/src/index.js

```ts
import * as recast from "recast";
import * as babelParser from "recast/parsers/babel";

const ast = recast.parse(
`
createMachine(
{
initial: 'foo'
},
{
actions: {}
}
)
`,
{
parser: babelParser
}
);

const config = ast.program.body[0].expression.arguments[0];

config.properties[0].value = recast.types.builders.stringLiteral("REPLACED");

console.log(recast.print(config).code);
```

**Actual**
```
{
initial: "REPLACED"
}
```

**Expected**
```
{
initial: "REPLACED"
}
```

Start with the src/index.js reproduction from the linked CodeSandbox and trace recast.parse with the Babel parser through recast.print(config). Verify how printing the non-file config node handles its original indentation. Done means the output preserves the two-space indentation shown in the expected result while still replacing the property value.

Written by the indexing model from the issue text.