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security.rdoc: correction

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* doc/security.rdoc (Symbols): ID2SYM never creates new IDs bound
  to immortal symbols, SYM2ID may create new IDs.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49516 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2015-02-05 21:09:27 +00:00
parent c6da6fb04e
commit e27a538eab
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doc/security.rdoc
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@ -75,7 +75,7 @@ They are created when modifying code:
* defining a method (e.g. with +define_method+),
* setting an instance variable (e.g. with +instance_variable_set+),
* creating a variable or constant (e.g. with +const_set+)
C extensions that have not been updated and are still calling `ID2SYM`
C extensions that have not been updated and are still calling `SYM2ID`
will create immortal symbols.
Bugs in 2.2.0: +send+ and +__send__+ also created immortal symbols,
and calling methods with keyword arguments could also create some.