`ast.literal_eval` does not accept code with leading whitespaces, while `eval` accepts them, which is an inconsistency.

```
>>> import ast
>>> eval(' 1')
1
>>> ast.literal_eval(' 1')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.9/ast.py", line 62, in literal_eval
    node_or_string = parse(node_or_string, mode='eval')
  File "/usr/local/lib/python3.9/ast.py", line 50, in parse
    return compile(source, filename, mode, flags,
  File "<unknown>", line 1
    1
IndentationError: unexpected indent
```