RFR: 8361383: LogFileStreamOutput::write_decorations uses wrong type for format precisions

[Ioi Lam]

On Fri, 4 Jul 2025 00:13:15 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this change to LogFileStreamOutput to fix the type of the
> precision values used when writing the decorations in a log message.
> 
> While I was at it, value-initialize the _decorator_padding in the
> ctor-initializer rather than with a zero-filling loop.
> 
> Testing: mach5 tier1
> Locally ran several tests that generate logging output and checked by eye the
> decorator output.

Marked as reviewed by iklam (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/26124#pullrequestreview-3008500002