Rakefile in sanford-0.3.0 vs Rakefile in sanford-0.4.0

- old
+ new

@@ -1,7 +1,7 @@
 require "bundler/gem_tasks"
 
-ENV['SANFORD_SERVICES_CONFIG'] = 'bench/services'
+ENV['SANFORD_SERVICES_FILE'] = 'bench/services'
 require 'sanford/rake'
 require 'bench/tasks'
 
 require "assert/rake_tasks"
 Assert::RakeTasks.install