[ruby-cvs:61160] nobu:r53999 (trunk): securerandom.rb: remove to_s call

[nobu at ruby-lang.org]

nobu	2016-03-04 22:39:46 +0900 (Fri, 04 Mar 2016)

  New Revision: 53999

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=53999

  Log:
    securerandom.rb: remove to_s call
    
    * lib/securerandom.rb (gen_random): Array#join returns a String,
      no to_s is needed.

  Modified files:
    trunk/lib/securerandom.rb