Sort text/html extensions by priority

test/mimemagic_test.rb

@@ -44,7 +44,7 @@ class TestMimeMagic < Minitest::Test
   end
   end
 
 
   def test_have_extensions
   def test_have_extensions
-    assert_equal %w(htm html), MimeMagic.new('text/html').extensions
+    assert_equal %w(html htm), MimeMagic.new('text/html').extensions
   end
   end
 
 
   def test_have_comment
   def test_have_comment