nobu	2018-05-18 09:40:06 +0900 (Fri, 18 May 2018)

  New Revision: 63460

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63460

  Log:
    tool: fixed shadowing variables

  Modified files:
    trunk/tool/checksum.rb
    trunk/tool/rbinstall.rb
    trunk/tool/transcode-tblgen.rb
Index: tool/transcode-tblgen.rb
===================================================================
--- tool/transcode-tblgen.rb	(revision 63459)
+++ tool/transcode-tblgen.rb	(revision 63460)
@@ -145,7 +145,7 @@ class ActionMap https://github.com/ruby/ruby/blob/trunk/tool/transcode-tblgen.rb#L145
                 else
                   b = $1.to_i(16)
                   e = $2.to_i(16)
-                  b.upto(e) {|c| set[c] = true }
+                  b.upto(e) {|_| set[_] = true }
                 end
               }
               i = nil
@@ -297,10 +297,10 @@ class ActionMap https://github.com/ruby/ruby/blob/trunk/tool/transcode-tblgen.rb#L297
         raise ArgumentError, "ambiguous pattern: #{prefix}" if min.length != prefix.length
         h[action] = true
       end
-      region_rects.each {|min, max, action|
+      for min, _, action in region_rects
         raise ArgumentError, "ambiguous pattern: #{prefix}" if !min.empty?
         h[action] = true
-      }
+      end
       tree = Action.new(block.call(prefix, h.keys))
       h.clear
     else
Index: tool/rbinstall.rb
===================================================================
--- tool/rbinstall.rb	(revision 63459)
+++ tool/rbinstall.rb	(revision 63460)
@@ -590,7 +590,7 @@ install?(:local, :comm, :man) do https://github.com/ruby/ruby/blob/trunk/tool/rbinstall.rb#L590
           STDIN.reopen(f)
           begin
             destfile << suffix
-            IO.popen(compress) {|f| f.read}
+            IO.popen(compress, &:read)
           ensure
             STDIN.reopen(stdin)
             stdin.close
Index: tool/checksum.rb
===================================================================
--- tool/checksum.rb	(revision 63459)
+++ tool/checksum.rb	(revision 63460)
@@ -67,6 +67,6 @@ class Checksum https://github.com/ruby/ruby/blob/trunk/tool/checksum.rb#L67
   def self.update(argv)
     k = new(VPath.new)
     k.source, k.target, *argv = k.def_options.parse(*argv)
-    k.update {|k| yield(k, *argv)}
+    k.update {|_| yield(_, *argv)}
   end
 end

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