method
fu_check_options
fu_check_options(options, optdecl)
private
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# File lib/fileutils.rb, line 1435 def fu_check_options(options, optdecl) #:nodoc: h = options.dup optdecl.each do |opt| h.delete opt end raise ArgumentError, "no such option: #{h.keys.join(' ')}" unless h.empty? end