This works better:
import std.stdio;
import std.file;
void main() {
//string s = readText("s.txt");
string s;
foreach(line; File("s.txt", "r").byLine()) {
s ~= line~"\r\n";
}
s = s[0..$-2];
writeln([s]);
File("s.txt", "w").write(s);
}
But one text file program says it has solitary carriage returns
in it.