# File lib/rubygems/request_set/lockfile.rb, line 466
def to_s
@set.resolve
out = []
@requests = @set.sorted_requests
@spec_groups = @requests.group_by do |request|
request.spec.class
end
add_PATH out
add_GIT out
add_GEM out
add_PLATFORMS out
add_DEPENDENCIES out
out.join "\n"
end