fileutils.rb: reduce private

* lib/fileutils.rb (Verbose, NoWrite, DryRun): make overridden
  methods private by each one calls.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53973 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/fileutils.rb

@@ -1690,14 +1690,15 @@ module FileUtils
     include FileUtils
     @fileutils_output  = $stderr
     @fileutils_label   = ''
-    ::FileUtils.collect_method(:verbose).each do |name|
+    names = ::FileUtils.collect_method(:verbose)
+    names.each do |name|
       module_eval(<<-EOS, __FILE__, __LINE__ + 1)
         def #{name}(*args)
           super(*fu_update_option(args, :verbose => true))
         end
-        private :#{name}
       EOS
     end
+    private(*names)
     extend self
     class << self
       public(*::FileUtils::METHODS)
@@ -1714,14 +1715,15 @@ module FileUtils
     include LowMethods
     @fileutils_output  = $stderr
     @fileutils_label   = ''
-    ::FileUtils.collect_method(:noop).each do |name|
+    names = ::FileUtils.collect_method(:noop)
+    names.each do |name|
       module_eval(<<-EOS, __FILE__, __LINE__ + 1)
         def #{name}(*args)
           super(*fu_update_option(args, :noop => true))
         end
-        private :#{name}
       EOS
     end
+    private(*names)
     extend self
     class << self
       public(*::FileUtils::METHODS)
@@ -1739,14 +1741,15 @@ module FileUtils
     include LowMethods
     @fileutils_output  = $stderr
     @fileutils_label   = ''
-    ::FileUtils.collect_method(:noop).each do |name|
+    names = ::FileUtils.collect_method(:noop)
+    names.each do |name|
       module_eval(<<-EOS, __FILE__, __LINE__ + 1)
         def #{name}(*args)
           super(*fu_update_option(args, :noop => true, :verbose => true))
         end
-        private :#{name}
       EOS
     end
+    private(*names)
     extend self
     class << self
       public(*::FileUtils::METHODS)