[ruby-cvs:64374] usa:r57208 (ruby_2_2): merge revision(s) 56832: [Backport #12956]

[usa at ruby-lang.org]

usa	2016-12-27 18:28:20 +0900 (Tue, 27 Dec 2016)

  New Revision: 57208

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=57208

  Log:
    merge revision(s) 56832: [Backport #12956]
    
    dln.c: raise LoadError
    
    * dln.c (dln_load): raise LoadError instead of fatal error on
      recent OSX, dlclose seems fixed in El Capitan or later.
      [ruby-core:78200] [Bug #12956]

  Modified directories:
    branches/ruby_2_2/
  Modified files:
    branches/ruby_2_2/dln.c
    branches/ruby_2_2/version.h