https://run.dlang.io/is/p4NVp8
```d
void main()
{
import std.stdio: writefln;
string[] s = ["a", "b", "c"];
writefln("%(%s, %)", s);
}
```
output
```d
"a", "b", "c"
```
expected
```d
a, b, c
```
there is extra quotes, wich not present in firmat specifier.
is this bug, or i should change something in my code?