k0kubun	2017-06-12 20:09:10 +0900 (Mon, 12 Jun 2017)

  New Revision: 59070

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59070

  Log:
    array.c: [DOC] Make it clear that #<< modifies receiver
    
    This patch is sent from @selmertsx (morioka shuhei).
    
    [fix GH-1646]

  Modified files:
    trunk/array.c
Index: array.c
===================================================================
--- array.c	(revision 59069)
+++ array.c	(revision 59070)
@@ -910,7 +910,10 @@ ary_take_first_or_last(int argc, const V https://github.com/ruby/ruby/blob/trunk/array.c#L910
  *  expression returns the array itself, so several appends
  *  may be chained together.
  *
- *     [ 1, 2 ] << "c" << "d" << [ 3, 4 ]
+ *     a = [ 1, 2 ]
+ *     a << "c" << "d" << [ 3, 4 ]
+ *             #=>  [ 1, 2, "c", "d", [ 3, 4 ] ]
+ *     a
  *             #=>  [ 1, 2, "c", "d", [ 3, 4 ] ]
  *
  */

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