hg: jdk/sandbox: 8230085: (fs) FileStore::isReadOnly is always true on macOS Catalina

[chris.hegarty at oracle.com]

Changeset: 3054503bad7d
Author:    bpb
Date:      2019-09-13 16:03 -0700
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/3054503bad7d

8230085: (fs) FileStore::isReadOnly is always true on macOS Catalina
Reviewed-by: alanb

! src/java.base/macosx/classes/sun/nio/fs/BsdFileStore.java
! src/java.base/macosx/classes/sun/nio/fs/BsdNativeDispatcher.java
! src/java.base/macosx/native/libnio/fs/BsdNativeDispatcher.c
! src/java.base/unix/classes/sun/nio/fs/UnixNativeDispatcher.java