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update doc.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34514 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2012-02-09 13:18:26 +00:00
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commit 3b1276eb39
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enum.c
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@ -445,6 +445,7 @@ flat_map_i(VALUE i, VALUE ary, int argc, VALUE *argv)
*
* If no block is given, an enumerator is returned instead.
*
* [1, 2, 3, 4].flat_map { |e| [e, -e] } #=> [1, -1, 2, -2, 3, -3, 4, -4]
* [[1, 2], [3, 4]].flat_map { |e| e + [100] } #=> [1, 2, 100, 3, 4, 100]
*
*/