stomar	2017-03-02 19:31:56 +0900 (Thu, 02 Mar 2017)

  New Revision: 57758

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=57758

  Log:
    string.c: restore documentation for String#<<
    
    * string.c: [DOC] restore documentation for String#<<
      which became undocumented with r56021; fix a typo.
      [ruby-core:79865] [Bug #13268]

  Modified files:
    trunk/string.c
Index: string.c
===================================================================
--- string.c	(revision 57757)
+++ string.c	(revision 57758)
@@ -2868,6 +2868,9 @@ rb_str_concat_literals(size_t num, const https://github.com/ruby/ruby/blob/trunk/string.c#L2868
 }
 
 /*
+ *  Document-method: String#<<
+ *  Document-method: String#concat
+ *
  *  call-seq:
  *     str << integer                      -> str
  *     str.concat(integer1, integer2,...)  -> str
@@ -2882,7 +2885,7 @@ rb_str_concat_literals(size_t num, const https://github.com/ruby/ruby/blob/trunk/string.c#L2885
  *     a = "hello "
  *     a << "world"   #=> "hello world"
  *     a.concat(33)   #=> "hello world!"
- *     a              #=> "hollo world!"
+ *     a              #=> "hello world!"
  *
  *     b = "sn"
  *     b.concat(b, b)    #=> "snsnsn"

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