Issue #9793 has been reported by Ye Jia.

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Bug #9793: package "thread" is missed on http://www.ruby-doc.org/stdlib-2.1.1/ and also 2.1.0
https://bugs.ruby-lang.org/issues/9793

* Author: Ye Jia
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: 2.1.0 and 2.1.1
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
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it seems not intended?



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