Passing options like {10 => 10} looks can not use in ruby 2.6...

Author: kachick

test/pathname/test_pathname.rb

@@ -1466,6 +1466,7 @@ def test_file_fnmatch
   end
 
   def test_relative_path_from_casefold
+    omit unless RUBY_VERSION >= '2.7.0'
     assert_separately([], <<-'end;') #    do
       module File::Constants
         remove_const :FNM_SYSCASE