merge revision(s) 49428: [Backport #10694]
* thread.c: Improve documentation for Thread#value [Bug #10694][ruby-core:67324][ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@49734 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 49428: [Backport #10694]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@49734 b2dd03c8-39d4-4d8f-98ff-823fe69b080e