uninitialized constant Gem::GemRunner (NameError)

In der neuen Version von gem (1.0.1) tritt noch ein Error
/usr/bin/gem:23: uninitialized constant Gem::GemRunner (NameError) auf.
Diesen kann man beheben, indem man in der gem Datei folgenden Eintrag ergänzt:

require 'rubygems/gem_runner'

nach

require 'rubygems'
ergänzt.

Wer die datei nicht findet -> ls -la `which ruby`

Die Datei müsste dann in etwa so aussehen:
#!/usr/bin/env ruby
#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++


require 'rubygems'
require 'rubygems/gem_runner'



Gem.manage_gems

required_version = Gem::Version::Requirement.new(">= 1.8.0")
unless required_version.satisfied_by?(Gem::Version.new(RUBY_VERSION))
puts "Expected Ruby Version #{required_version}, was #{RUBY_VERSION}"
exit(1)
end

# We need to preserve the original ARGV to use for passing gem options
# to source gems. If there is a -- in the line, strip all options after
# it...its for the source building process.
args = !ARGV.include?("--") ? ARGV.clone : ARGV[0...ARGV.index("--")]

Gem::GemRunner.new.run(args)