RFR: 8271396: Spelling errors

[Emmanuel Bourg]

This PR fixes the following spelling errors:

 choosen  -> chosen
 commad   -> command
 hiearchy -> hierarchy
 leagacy  -> legacy
 minium   -> minimum
 subsytem -> subsystem
 unamed   -> unnamed

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

Commit messages:
 - 8271396: Fix spelling errors

Changes: https://git.openjdk.java.net/jdk/pull/2385/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2385&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8271396
  Stats: 78 lines in 34 files changed: 0 ins; 0 del; 78 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2385.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2385/head:pull/2385

PR: https://git.openjdk.java.net/jdk/pull/2385