Add a description about string-scrub.gem to NEWS

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43972 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2013-12-03 06:30:58 +00:00 · 2013-12-03 06:30:58 +00:00 · ee7fa8b227
commit ee7fa8b227
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@ -107,6 +107,8 @@ with all sufficient information, see the ChangeLog file.
 * String
  * New methods:
    * String#scrub and String#scrub! verify and fix invalid byte sequence.
+      If you want to use this function with older Ruby,
+      consider to use string-scrub.gem.
  * extended methods:
    * If invalid: :replace is specified for String#encode, replace
      invalid byte sequence even if the destination encoding equals to