### 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
#include "ustring.h"
#include "core/crypto/crypto_core.h"
#include "core/math/color.h"
#include "core/math/math_funcs.h"
#include "core/os/memory.h"
#include "core/string/print_string.h"
#include "core/string/string_name.h"
#include "core/string/translation.h"
#include "core/string/ucaps.h"
#include "core/variant/variant.h"
#include "core/version_generated.gen.h"
#include <stdio.h>
#include <stdlib.h>
#include <cstdint>
#ifdef _MSC_VER
#define _CRT_SECURE_NO_WARNINGS 
#endif
#if defined(MINGW_ENABLED) || defined(_MSC_VER)
#define snprintf _snprintf_s
#endif
static const int MAX_DECIMALS = 32;
static _FORCE_INLINE_ char32_t lower_case(char32_t c) {