std.experimental.logger

[sanjayss via Digitalmars-d-learn]

I'm doing the following:

import std.experimental.logger;

int
main(string[] args)
{
sharedLog = new FileLogger("logfile.log");

log("Test log 1");
log("Test log 2");
log("Test log 3");
}


and I expected the logs to be seen in the logfile.log, but it 
seems like my reading of the docs on this is incorrect and the 
logfile.log is not populated at all (though it is created). What 
am I missing or using incorrectly?

Basically I am trying to have the default logger log to a file 
instead of stderr.

(I am on a Mac (OS-X 10.11.1, 64 bit) and using DMD 2.069.2)