RFR: 8273853: Update the Java manpage for automatic CDS archive updating [v3]

[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:

  Use text suggested by David

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/9024/files
  - new: https://git.openjdk.java.net/jdk/pull/9024/files/12bd8549..cefa77b9

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=9024&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=9024&range=01-02

  Stats: 21 lines in 1 file changed: 0 ins; 4 del; 17 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