### Godot version

4.1.1

### System information

linux

### Issue description

The `"%+f"` format adds a `+` sign in front of positive numbers. If you try to format `-0.0`, it breaks and displays both a `+` and a `-`.

### Steps to reproduce

```gdscript
@tool
extends EditorScript

func _run() -> void:
    print("%+f" % -0.0)
```

### Minimal reproduction project

see above
#ifdef WINDOWS_ENABLED
	
	parse_utf16((const char16_t *)p_cstr);
#else
	
	copy_from((const char32_t *)p_cstr);
#endif
}
void ::copy_from(const wchar_t *p_cstr, const int p_clip_to) {