Rakefile in semantic_logger-4.2.0 vs Rakefile in semantic_logger-4.2.1

@@ -1,8 +1,8 @@
 require 'rake/clean'
 require 'rake/testtask'
 
-$LOAD_PATH.unshift File.expand_path("../lib", __FILE__)
+$LOAD_PATH.unshift File.expand_path('lib', __dir__)
 require 'semantic_logger/version'
 
 task :gem do
   system 'gem build semantic_logger.gemspec'
 end