<i18n dev> RFR: 8294397: Replace StringBuffer with StringBuilder within java.text [v3]

[Justin Lu]

> Problem: Unnecessary instances of StringBuffer within java.text (internal only)
> 
> Fix: StringBuffer Replaced with StringBuilder, and adjusted variable/method names

Justin Lu has updated the pull request incrementally with one additional commit since the last revision:

  Tweak indentation in PaternEntry

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Changes:
  - all: https://git.openjdk.org/jdk/pull/10475/files
  - new: https://git.openjdk.org/jdk/pull/10475/files/e02edf67..cd966f31

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10475&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10475&range=01-02

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/10475.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10475/head:pull/10475

PR: https://git.openjdk.org/jdk/pull/10475