hg: jdk/sandbox: unixdomainchannels: doc updates

[michael.x.mcmahon at oracle.com]

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Changeset: 6591f16e58b2
Author:    michaelm
Date:      2020-06-29 17:12 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/6591f16e58b2

unixdomainchannels: doc updates

! src/java.base/share/classes/java/net/NetPermission.java
! src/java.base/share/classes/java/nio/channels/SocketChannel.java
! src/java.base/share/classes/java/nio/channels/package-info.java
! src/java.base/share/classes/java/nio/channels/spi/SelectorProvider.java
! src/jdk.net/share/classes/jdk/net/UnixDomainPrincipal.java