[ruby-cvs:62085] nagachika:r54922 (ruby_2_3): merge revision(s) 54898: [Backport #12339]

[nagachika at ruby-lang.org]

nagachika	2016-05-06 02:26:00 +0900 (Fri, 06 May 2016)

  New Revision: 54922

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=54922

  Log:
    merge revision(s) 54898: [Backport #12339]
    
    * bignum.c: [DOC] Update result of 123456789 ** -2.
      [ruby-dev:49606] [Bug #12339]

  Modified directories:
    branches/ruby_2_3/
  Modified files:
    branches/ruby_2_3/ChangeLog
    branches/ruby_2_3/bignum.c
    branches/ruby_2_3/version.h