BlockingTextWriter?

[Paul D. Anderson]

In the Phobos documentation for std.format:

"[O]utput is sent do this writer. Typical output writers include 
std.array.Appender!string and std.stdio.BlockingTextWriter."

std.stdio doesn't have a "BlockingTextWriter" but it does have a 
"LockingTextWriter".

Typo? Name change? "BlockingTextWriter" is scheduled for 
deprecation?

Also --

It was only after I cut and pasted the documentation fragment 
that I noticed that  output is sent "do" this writer.

Paul