RFR: 8274898: Cleanup usages of StringBuffer in jdk tools modules

[Сергей Цыпанов]

On Thu, 9 Sep 2021 06:53:13 GMT, Andrey Turbanov <github.com+741251+turbanoff at openjdk.org> wrote:

> StringBuffer is a legacy synchronized class. StringBuilder is a direct replacement to StringBuffer which generally have better performance

src/jdk.jpackage/share/classes/jdk/jpackage/internal/Log.java line 117:

> 115: 
> 116:                 for (String s : strings) {
> 117:                     sb.append(" " + s);

Shouldn't it be `sb.append(" ").append(s)`?

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PR: https://git.openjdk.java.net/jdk/pull/5433