From: "Charles L." <aquasync@...>
Date: 2009-01-01T12:02:54+09:00
Subject: Re: Ruby 1.9.1 RC1 is released

I'm trying to make one of my libraries run on this rc, and ran into this 
difference from 1.8:

% touch afile
% irb
> open('asdf', 'rb') { |f| f.flush }
IOError: not opened for writing
...
% irb1.9
open('asdf', 'rb') { |f| f.flush }
=> #<File:asdf (closed)>
%

Is this intentional? I was previously abusing this as a way to find out 
if an arbitrary io object was writeable. Perhaps theres a better way in 
1.9?

Also if there's somewhere else one should turn to for 1.8 -> 1.9 
questions please let me know...

Thanks,

Charles
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