FreeBSD/doc cc78ac3 (r52476)ja_JP.eucJP/htdocs/security security.xml

- Merge the following from the English version:

        r52445 -> r52475        head/ja_JP.eucJP/htdocs/security/security.xml
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+3-29ja_JP.eucJP/htdocs/security/security.xml
+3-291 files

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