It's working again!!!

hello-sinatra/bundle/ruby/2.2.0/bin/rackup

@@ -0,0 +1,23 @@
+#!/usr/bin/env ruby
+#
+# This file was generated by RubyGems.
+#
+# The application 'rack' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require 'rubygems'
+
+version = ">= 0"
+
+if ARGV.first
+  str = ARGV.first
+  str = str.dup.force_encoding("BINARY") if str.respond_to? :force_encoding
+  if str =~ /\A_(.*)_\z/ and Gem::Version.correct?($1) then
+    version = $1
+    ARGV.shift
+  end
+end
+
+gem 'rack', version
+load Gem.bin_path('rack', 'rackup', version)