[readability/braces] False positive for ; after {} in struct reference

```c
    struct mount_attr *attr = &(struct mount_attr){};
```

I'm not sure if this is valid C++.  It is valid C, for sure (weird, but valid :)).

```
tmp/src/man2/mount_setattr.2.d/mount_setattr.c:61:  You don't need a ; after a }  [readability/braces] [4]
```

AFAIK, the report is invalid, since the `;` is necessary.