RFR: 8273853: Update the Java manpage for automatic CDS archive updating [v2]

[Ioi Lam]

> Added description of the new flag `-XX:+AutoCreateSharedArchive` to the `java` man page.

Ioi Lam has updated the pull request incrementally with one additional commit since the last revision:

  @dholmes-ora comments

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/9024/files
  - new: https://git.openjdk.java.net/jdk/pull/9024/files/c8034a6c..12bd8549

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=9024&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=9024&range=00-01

  Stats: 26 lines in 1 file changed: 10 ins; 1 del; 15 mod
  Patch: https://git.openjdk.java.net/jdk/pull/9024.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/9024/head:pull/9024

PR: https://git.openjdk.java.net/jdk/pull/9024