in_prometheus_scrape: add missing config param description

[eschabell]

• Add description for buffer_max_size configuration parameter

Fixes ##11385

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Testing
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• [ N/A ] Example configuration file for the change
• [ N/A ] Debug log output from testing the change
• [ N/A ] Attached Valgrind output that shows no leaks or memory corruption was found

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• [ N/A ] Run local packaging test showing all targets (including any new ones) build.
• [ N/A ] Set ok-package-test label to test for all targets (requires maintainer to do).

Documentation

• [ Already in docs ] Documentation required for this feature

Backporting

• [ N/A ] Backport to latest stable release.

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Fluent Bit is licensed under Apache 2.0, by submitting this pull request I understand that this code will be released under the terms of that license.

Summary by CodeRabbit

• Documentation
  • Enhanced help text descriptions for buffer configuration settings in Prometheus scraping options, providing clearer guidance to users.

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[coderabbitai]

📝 Walkthrough

Walkthrough

A help text description for the buffer_max_size configuration option in the Prometheus scrape plugin was updated from an empty string to a non-empty descriptive message, providing user-facing documentation for this configuration parameter.

Changes

Cohort / File(s)	Summary
Prometheus Scrape Configuration Help Text plugins/in_prometheus_scrape/prom_scrape.c	Updated the buffer_max_size configuration map entry with a non-empty description string to provide user-facing help text for this configuration option

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related issues

• in_prometheus_scrape plugin missing buffer_max_size config description #11385: Directly addresses the missing help text for the buffer_max_size configuration option in the Prometheus scrape plugin.

Suggested labels

docs-required

Suggested reviewers

• edsiper
• cosmo0920

Poem

🐰 A tiny fix with mighty grace,
Help text finds its rightful place,
Buffer size now speaks so clear,
Users smile from ear to ear! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding a missing description for the buffer_max_size configuration parameter in the in_prometheus_scrape plugin.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

• 📝 Generate docstrings

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[patrick-stephens]

Trivial fix