class Gem::Commands::ExecCommand

def description # :nodoc:
  <<-EOF
e exec command handles installing (if necessary) and running an executable
om a gem, regardless of whether that gem is currently installed.
e exec command can be thought of as a shortcut to running `gem install` and
en the executable from the installed gem.
r example, `gem exec rails new .` will run `rails new .` in the current
rectory, without having to manually run `gem install rails`.
ditionally, the exec command ensures the most recent version of the gem
 used (unless run with `--conservative`), and that the gem is not installed
 the same gem path as user-installed gems.
  EOF
end