RFR: 8238373: Punctuation should be same in jlink help usage on Japanese language

[KIRIYAMA Takuya]

When showing help for the jlink command in a Japanese locale, delimiters of option's aliases are a mixture of "," and \u3001. Delimiter should be unified to ",".
As the same, there is a inconsistency of delimiters in the jar command help in a Japanese locale, and "," should be used.
Similarly, the javap command help uses space as delimiters other than the module option in all locales. This inconsistency should also be corrected.

Would you please review this fix?

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

Commit messages:
 - 8238373: Punctuation should be same in jlink help usage on Japanese language

Changes: https://git.openjdk.java.net/jdk/pull/8417/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=8417&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8238373
  Stats: 18 lines in 6 files changed: 0 ins; 0 del; 18 mod
  Patch: https://git.openjdk.java.net/jdk/pull/8417.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/8417/head:pull/8417

PR: https://git.openjdk.java.net/jdk/pull/8417