[ruby-cvs:63469] usa:r56304 (ruby_2_2): merge revision(s) 55984: [Backport #12692]

[usa at ruby-lang.org]

usa	2016-10-01 00:52:42 +0900 (Sat, 01 Oct 2016)

  New Revision: 56304

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56304

  Log:
    merge revision(s) 55984: [Backport #12692]
    
    * man/irb.1: remove useless -width option.
      [ruby-dev:49767] [Bug #12692]

  Modified directories:
    branches/ruby_2_2/
  Modified files:
    branches/ruby_2_2/ChangeLog
    branches/ruby_2_2/man/irb.1
    branches/ruby_2_2/version.h