nobu	2018-02-05 12:19:39 +0900 (Mon, 05 Feb 2018)

  New Revision: 62217

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=62217

  Log:
    vcs.rb: for old ruby
    
    * tool/vcs.rb (DebugSystem#system): pop option hash for old
      version ruby which does not support `system` options.

  Modified files:
    trunk/tool/vcs.rb
Index: tool/vcs.rb
===================================================================
--- tool/vcs.rb	(revision 62216)
+++ tool/vcs.rb	(revision 62217)
@@ -103,6 +103,7 @@ else https://github.com/ruby/ruby/blob/trunk/tool/vcs.rb#L103
         exception = opts.fetch(:exception) {opts[:exception] = true}
       elsif opts
         exception = opts.delete(:exception) {true}
+        args.pop if opts.empty?
       end
       ret = super(*args)
       raise "Command failed with status (#$?): #{args[0]}" if exception and !ret

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