Ruby

ruby.c: fix ARGV doc [ci skip]

• ruby.c (ruby_prog_init): [DOC] ARGV does not contain the name of
  the executable. [ruby-core:71561] [Bug #11711]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52670 b2dd03c8-39d4-4d8f-98ff-823fe69b080e