Gemfile in icns-0.1.0 vs Gemfile in icns-0.2.0

@@ -1,5 +1,9 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
-git_source(:github) {|repo_name| "https://github.com/#{repo_name}" }
+ruby '2.5.1'
+
+git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 gemspec