Error in std.stdio.d

[MGW via Digitalmars-d]

Error in std.stdio.d
This example doesn't work!

// dmd 2.067.1 Win 32
import std.stdio;
void main(string[] args) {
        File fw = File("panic.csv", "w");
        for(int i; i != 5000; i++) {
                fw.writeln(i, ";", "Иванов;Пётр;Иванович");
        }
        fw.close();
        // Test read
        File fr = File("panic.csv", "r");
        int nom; string fam, nam, ot;
        // Error format read
        while(!fr.eof) fr.readf("%s;%s;%s;%s\n", &nom, &fam, &nam, &ot);
}

This mistake, is result of wrong algorithm with reading from the 
ring buffer of the file and return of the read symbols there in 
stdio function ungetc().