clang-format formating "#!" line in content. This is not normal.

Code:

```
#!/usr/local/bin/cc run
int main(){return 0;}
```

To:

```
#!/ usr / local / bin / cc run
int main()
{
    return 0;
}
```
clang-format "#!" line formating.
This is a GitHub Issue
repo:llvm-project
owner:llvm
Title : clang-format "#!" line formating.
Issue date:

--- start body ---
clang-format formating "#!" line in content. This is not normal.

Code:

```
#!/usr/local/bin/cc run
int main(){return 0;}
```

To:

```
#!/ usr / local / bin / cc run
int main()
{
    return 0;
}
```
--- end body ---
