From: Vladimir Marteev <xor104@...>
Date: 2006-11-22T23:43:49+09:00
Subject: Another YAML bug?

[code]
#!/usr/bin/ruby1.8
require 'yaml'
a = { "b" => "c", "d" => nil, "e" => "f" }
puts a.to_yaml
[/code]

result:

---
b: c
d:
e: f

but must be:

---
b: c
d: ~
e: f

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