require at least 1.9.2

Author: Charlie Somerville

better_errors.gemspec

@@ -17,6 +17,8 @@ Gem::Specification.new do |s|
   s.test_files    = s.files.grep(%r{^(test|spec|features)/})
   s.require_paths = ["lib"]
 
+  s.required_ruby_version = ">= 1.9.2"
+
   s.add_development_dependency "rake"
   s.add_development_dependency "rspec", "~> 2.12.0"
   s.add_development_dependency "binding_of_caller"