### 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
if (p_n == 1) {
		return text.replace("$DOCS_URL", VERSION_DOCS_URL);
	}
	return text_plural.replace("$DOCS_URL", VERSION_DOCS_URL);
}
#endif
/**
 * "Run-time TRanslate". Performs string replacement for internationalization
 * within a running project. The translation string must be supplied by the
 * project, as Godot does not provide built-in translations for `RTR()` strings
 * to keep binary size low. A translation context can optionally be specified to
 * disambiguate between identical source strings in translations. When
 * placeholders are desired, use `vformat(RTR("Example: %s"), some_string)`.
 * If a string mentions a quantity (and may therefore need a dynamic plural form),
 * use `RTRN()` instead of `RTR()`.
 *
 * NOTE: Do not use `RTR()` in editor-only code (typically within the `editor/`
 * folder). For editor translations, use `TTR()` instead.
 */
 RTR(const  &p_text, const  &p_context) {
	if (TranslationServer::get_singleton()) {
		 rtr = TranslationServer::get_singleton()->tool_translate(p_text, p_context);
		if (rtr.is_empty() || rtr == p_text) {
			return TranslationServer::get_singleton()->translate(p_text, p_context);
		} else {
			return rtr;
		}
	}
	return p_text;
}