Cleans up uninstalled files and invalid gem specifications
# File lib/rubygems/doctor.rb, line 67
def doctor
@orig_home = Gem.dir
@orig_path = Gem.path
say "Checking #{@gem_repository}"
Gem.use_paths @gem_repository.to_s
unless gem_repository? then
say 'This directory does not appear to be a RubyGems repository, ' +
'skipping'
say
return
end
doctor_children
say
ensure
Gem.use_paths @orig_home, *@orig_path
end