Fix bug where blank lines in Procfile break Foreman.

spec/spec_helper.rb

@@ -27,6 +27,7 @@ end
 def write_procfile(procfile="Procfile")
   File.open(procfile, "w") do |file|
     file.puts "alpha: ./alpha"
+    file.puts "\n"
     file.puts "bravo: ./bravo"
   end
   File.expand_path(procfile)