[ruby-cvs:63602] nagachika:r56437 (ruby_2_3): merge revision(s) 55232: [Backport #12823]

[nagachika at ruby-lang.org]

nagachika	2016-10-18 02:23:32 +0900 (Tue, 18 Oct 2016)

  New Revision: 56437

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56437

  Log:
    merge revision(s) 55232: [Backport #12823]
    
    crypt.c: protoize
    
    * missing/crypt.c: protoize function definitions and make
      always-zero functions void.

  Modified directories:
    branches/ruby_2_3/
  Modified files:
    branches/ruby_2_3/missing/crypt.c
    branches/ruby_2_3/version.h