bare_instructions.rb: use Hash#fetch to read attr
to raise descriptive KeyError instead of NoMethodError in case these attrs are accidentally removed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64685 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
bare_instructions.rb: use Hash#fetch to read attr
to raise descriptive KeyError instead of NoMethodError in case these
attrs are accidentally removed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64685 b2dd03c8-39d4-4d8f-98ff-823fe69b080e