Update comments now that LLVM PR3861 has been fixed. However, since conditionally removing the workaround makes the ABI dependent on LLVM version, I reconsidered that. (The same revision of LDC compiling for the same target should probably produce code that follows the same ABI, right?)

module strings2;

import std.string;
import std.stdio;

void main()
{
    int i = 32;
    auto str = format(i);
    writefln(str);

    long l = 123123;
    str = format(l);
    writefln(str);
}