<Swing Dev> RFR: 8255989: Remove explicitly unascribed authorship from Java source files [v2]

[Pavel Rappo]

> This PR proposes to remove
> 1. JavaDoc `@author` tags with unclear semantics: `@author unascribed|unattributed|unknown`
> 2. A couple of astray Form Feed (a.k.a. FF, `\f`,  `0xC`, or `^L`) characters

Pavel Rappo has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' into 8255989
 - Initial commit

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1100/files
  - new: https://git.openjdk.java.net/jdk/pull/1100/files/9f9b0a85..830ffafb

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1100&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1100&range=00-01

  Stats: 192 lines in 9 files changed: 28 ins; 64 del; 100 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1100.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1100/head:pull/1100

PR: https://git.openjdk.java.net/jdk/pull/1100