vcs.rb: no meaningless splat

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62218 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

tool/vcs.rb

@@ -14,7 +14,7 @@ unless File.respond_to? :realpath
 end
 
 def IO.pread(*args)
-  STDERR.puts(*args.inspect) if $DEBUG
+  STDERR.puts(args.inspect) if $DEBUG
   popen(*args) {|f|f.read}
 end