Issue #9285 has been updated by Motohiro KOSAKI.


I don't like just turning hidden because I can't agree release build doesn't need debug.
But I agree current format is a little confusable and C function name is less important. 
String format could be improved if someone propose better idea.


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Bug #9285: Exception message of Errno::ENOENT contains strings @ rb_sysopen and @ dir_initialize in Ruby 2.1
https://bugs.ruby-lang.org/issues/9285#change-44571

* Author: Andrey Botalov
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: ruby 2.1.0dev (2013-12-20 trunk 44301) [x86_64-linux]
* Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN, 2.1: UNKNOWN
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Exception message of Errno::ENOENT exception contains strings "@ rb_sysopen" or "@ dir_initialize" in Ruby 2.1.0-rc1. It doesn't contain them in Ruby 2.0. I would expect exception message not to contain those strings.

Example in Ruby 2.1:
$ irb    
2.1.0dev :001 > File.new('/path/to/not/existent/file')
Errno::ENOENT: No such file or directory @ rb_sysopen - /path/to/not/existent/file
	from (irb):1:in `initialize'
	from (irb):1:in `new'
	from (irb):1
	from /home/andrey/.rvm/rubies/ruby-2.1.0-rc1/bin/irb:11:in `<main>'
2.1.0dev :002 > Dir.open('/path/to/not/existent/folder')
Errno::ENOENT: No such file or directory @ dir_initialize - /path/to/not/existent/folder
	from (irb):2:in `open'
	from (irb):2
	from /home/andrey/.rvm/rubies/ruby-2.1.0-rc1/bin/irb:11:in `<main>'
2.1.0dev :003 > 


Version: ruby 2.1.0dev (2013-12-20 trunk 44301) [x86_64-linux]
It's installed via RVM.
Ubuntu 13.04



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