[ruby-cvs:68635] nagachika:r61454 (ruby_2_4): merge revision(s) 60059: [Backport #13949]

[nagachika at ruby-lang.org]

nagachika	2017-12-25 03:59:53 +0900 (Mon, 25 Dec 2017)

  New Revision: 61454

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61454

  Log:
    merge revision(s) 60059: [Backport #13949]
    
    pack.c: unpack "M" may be ASCII only
    
    * pack.c (pack_unpack_internal): set ASCII only properly on "M",
      may be ASCII only.  [ruby-core:83055] [Bug #13949]

  Modified directories:
    branches/ruby_2_4/
  Modified files:
    branches/ruby_2_4/pack.c
    branches/ruby_2_4/test/ruby/test_pack.rb
    branches/ruby_2_4/version.h