Gemfile in fspath-3.1.0 vs Gemfile in fspath-3.1.1

- old
+ new

@@ -1,7 +1,11 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 gemspec
 
-if RUBY_VERSION >= '2.0'
+if ENV['CHECK_RUBIES']
   gem 'travis_check_rubies', '~> 0.2'
 end
+
+gem 'rspec-expectations', '!= 3.8.3' # https://github.com/rspec/rspec-expectations/issues/1113