RFR: 8272728: javac ignores any -J option in @argfiles silently

[Christian Stein]

Make javac error on `-J` being present in `@argfiles` or other locations, where the launcher didn't process and remove them.

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Commit messages:
 - Fix diff by forcing LF as the line-ending
 - Add integration test
 - Reporting invalid option and argument
 - Add throws clause and format message
 - [JDK-8272728] javac ignores any -J option in @argfiles silently

Changes: https://git.openjdk.java.net/jdk/pull/5891/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5891&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272728
  Stats: 20 lines in 2 files changed: 18 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5891.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5891/head:pull/5891

PR: https://git.openjdk.java.net/jdk/pull/5891