RFR: 8267569: java.io.File.equals contains misleading Javadoc [v2]

[Brian Burkhalter]

> Modify the specification of `java.io.File.equals` to clarify that equality is based only on a comparison of abstract pathnames as opposed to the file system objects that the `File`s represent.

Brian Burkhalter has updated the pull request incrementally with one additional commit since the last revision:

  8267569: Put clarifying verbiage in an @implNote

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/4232/files
  - new: https://git.openjdk.java.net/jdk/pull/4232/files/e9ac2179..acd072ab

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4232&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4232&range=00-01

  Stats: 8 lines in 1 file changed: 4 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4232.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4232/head:pull/4232

PR: https://git.openjdk.java.net/jdk/pull/4232