* Fixed following vulnerabilities:
	  * CVE-2019-8320: Delete directory using symlink when decompressing tar
	  * CVE-2019-8321: Escape sequence injection vulnerability in verbose
	  * CVE-2019-8322: Escape sequence injection vulnerability in gem owner
	  * CVE-2019-8323: Escape sequence injection vulnerability in API response handling
	  * CVE-2019-8324: Installing a malicious gem may lead to arbitrary code execution
	  * CVE-2019-8325: Escape sequence injection vulnerability in errors

	* see also https://blog.rubygems.org/2019/03/05/3.0.3-released.html


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_6@67182 b2dd03c8-39d4-4d8f-98ff-823fe69b080e