From: Roger Pack <rogerpack2005@...>
Date: 2011-05-20T00:13:00+09:00
Subject: Re: File.open options hash "mode" as int

> opt:  hash for specifying mode by name.

I guess this is why.  I just don't see quite *why* it requires mode by 
name in opts, but accepts it by int when given as a parameter.  But that 
makes sense.

A few more notes.

> IO.open(fd, mode_string="r" [, opt] ) → io

Yeah, interestingly, this doesn't look at all like
File.open('filename')
so...the docs just lack the most common usage of File.open apparently? 
Odd.

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