Yusuke Endoh 141db4f383 test/psych/test_scalar_scanner.rb: Prevent a warning ... ``` [ 4696/20990] TestAst#test_ranges:test/psych/test_scalar_scanner.rb(none):138: warning: ambiguous first argument; put parentheses or a space even after `-' operator ``` http://rubyci.s3.amazonaws.com/ubuntu/ruby-master/log/20210909T123007Z.log.html.gz		2021-09-09 23:35:03 +09:00
..
handlers
json
nodes
visitors
helper.rb
test_alias_and_anchor.rb
test_array.rb
test_boolean.rb
test_class.rb
test_coder.rb
test_date_time.rb
test_deprecated.rb
test_document.rb
test_emitter.rb
test_encoding.rb
test_exception.rb
test_hash.rb
test_json_tree.rb
test_marshalable.rb
test_merge_keys.rb
test_nil.rb
test_null.rb
test_numeric.rb
test_object.rb
test_object_references.rb
test_omap.rb
test_parser.rb
test_psych.rb
test_ractor.rb
test_safe_load.rb
test_scalar.rb
test_scalar_scanner.rb
test_serialize_subclasses.rb
test_set.rb
test_stream.rb
test_string.rb
test_struct.rb
test_symbol.rb
test_tree_builder.rb
test_yaml.rb
test_yaml_special_cases.rb
test_yamldbm.rb
test_yamlstore.rb