hg: jdk10/master: 8183901: Fix broken links to "Package Sealing" in the JAR spec

[brent.christian at oracle.com]

Changeset: b6da56767057
Author:    bchristi
Date:      2017-10-25 09:06 -0700
URL:       http://hg.openjdk.java.net/jdk10/master/rev/b6da56767057

8183901: Fix broken links to "Package Sealing" in the JAR spec
Reviewed-by: alanb, mchung

! src/java.base/share/classes/java/lang/ClassLoader.java
! src/java.base/share/classes/java/lang/Package.java
! src/java.base/share/classes/java/util/jar/Attributes.java