[jdk11u-dev] RFR: 8210689: Remove the multi-line old C style for string literals [v3]

[Goetz Lindenmaier]

> I backport this for parity with 11.0.14-oracle.

Goetz Lindenmaier 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 one additional commit since the last revision:

  Backport 64099fc1cc880a38aa89d4bf91745cf45643de3c

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Changes:
  - all: https://git.openjdk.java.net/jdk11u-dev/pull/661/files
  - new: https://git.openjdk.java.net/jdk11u-dev/pull/661/files/275c2aae..59e060ca

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=661&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=661&range=01-02

  Stats: 1043 lines in 9 files changed: 1022 ins; 8 del; 13 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/661.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/661/head:pull/661

PR: https://git.openjdk.java.net/jdk11u-dev/pull/661