typo "reqwest" in documentation

[bancroft]

While reading through the documentation for base-4.0.0.0: Basic libraries, Control Concurrent,

http://www.haskell.org/ghc/docs/latest/html/libraries/base/Control-Concurrent.html

I noticed a slightly manged "reqwest" in the paragraph,

"The System.IO library manages multiplexing in its own way. On Windows systems it uses safe foreign calls to ensure that threads doing I/O operations don't block the whole runtime, whereas on Unix systems all the currently blocked I/O reqwests are managed by a single thread (the IO manager thread) using select."

[igloo]

Thanks for the report; I'll fix it.

[igloo]

Fixed in HEAD and STABLE.