Check for ldc.conf next to the ldc binary before home and etc. The new search order is * current working directory * next to executable * user home directory * prefix/etc * prefix/etc/ldc * /etc * /etc/ldc

module tangotests.stdout2;

import tango.io.Stdout;

void main()
{
    Stdout.formatln("{} {} {}", "a", "b", 1.0);
}