| Fix an unintended ValueError from :func:`subprocess.run` when checking for | |
| conflicting `input` and `stdin` or `capture_output` and `stdout` or `stderr` | |
| args when they were explicitly provided but with `None` values within a | |
| passed in `**kwargs` dict rather than as passed directly by name. Patch | |
| contributed by Rémi Lapeyre. |