### 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
uint32_t hashv = 5381;
	for (int i = 0; i < p_len; i++) {
		hashv = ((hashv << 5) + hashv) + p_cstr[i]; /* 
	}
	return hashv;
}
uint32_t ::hash(const wchar_t *p_cstr) {
	uint32_t hashv = 5381;
	uint32_t c = *p_cstr++;
	while (c) {
		hashv = ((hashv << 5) + hashv) + c; /* 
		c = *p_cstr++;
	}
	return hashv;
}
uint32_t ::hash(const char32_t *p_cstr, int p_len) {
	uint32_t hashv = 5381;
	for (int i = 0; i < p_len; i++) {
		hashv = ((hashv << 5) + hashv) + p_cstr[i]; /* 
	}
	return hashv;
}
uint32_t ::hash(const char32_t *p_cstr) {
	uint32_t hashv = 5381;
	uint32_t c = *p_cstr++;
	while (c) {
		hashv = ((hashv << 5) + hashv) + c; /* 
		c = *p_cstr++;
	}
	return hashv;