naruse	2016-12-12 22:37:27 +0900 (Mon, 12 Dec 2016)

  New Revision: 57062

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=57062

  Log:
    fix command

  Modified files:
    trunk/tool/make-snapshot
Index: tool/make-snapshot
===================================================================
--- tool/make-snapshot	(revision 57061)
+++ tool/make-snapshot	(revision 57062)
@@ -45,7 +45,7 @@ PACKAGES = { https://github.com/ruby/ruby/blob/trunk/tool/make-snapshot#L45
 }
 
 if system("7z", out: IO::NULL)
-  PACKAGES["gzip"] = %w".tar.gz 7z a -tgzip -mx"
+  PACKAGES["gzip"] = %w".tar.gz 7z a dummy -tgzip -mx -so"
   PACKAGES["zip"]  = %w".zip    7z a -tzip  -mx"
 end
 if gzip = ENV.delete("GZIP")

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