fix typo

[pinkenburg]

Types of changes

• [ X] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work for users)
• Requiring change in macros repository (Please provide links to the macros pull request in the last section)
• I am a member of GitHub organization of sPHENIX Collaboration, EIC, or ECCE (contact Chris Pinkenburg to join)

What kind of change does this PR introduce? (Bug fix, feature, ...)

fix typo [skip-ci]

TODOs (if applicable)

Links to other PRs in macros and calibration repositories (if applicable)

Pull Request Summary: Fix Typo in CreateFileList.pl

Motivation / Context

The CreateFileList.pl script is a critical utility in the sPHENIX data processing framework for generating file lists used in offline reconstruction and analysis jobs. The script handles pileup configuration across multiple collision systems (Au+Au, p+p, p+Au, O+O). A syntax error in the O+O pileup string generation would prevent proper handling of oxygen-oxygen collision events.

Key Changes

• File: offline/framework/frog/CreateFileList.pl
• Fix: Corrected a syntax error in line 200 where a variable reference had an errant space: $ OO_bkgpileup → $OO_bkgpileup
• Impact: This one-character spacing issue in the Perl variable reference would have caused the O+O pileup string initialization to fail, affecting any data processing workflows configured for oxygen-oxygen collisions

Potential Risk Areas

• Minimal risk: This is a straightforward syntax correction with no logic changes
• Collision system coverage: This specifically affects O+O collision event processing; Au+Au, p+p, and p+Au systems are unaffected
• Framework stability: No changes to control flow, I/O formats, or reconstruction behavior

Notes

• AI Disclaimer: While this analysis is based on direct inspection of the code and git history, please verify this aligns with intended functionality
• This is a small but important fix for users running simulations or analyses involving oxygen-oxygen collisions

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

Corrects a variable reference syntax error in the pileup handling section of CreateFileList.pl. The erroneous space in $ OO_bkgpileup is removed to properly reference the variable $OO_bkgpileup, resolving an incorrect assignment in the else branch.

Changes

Cohort / File(s)	Summary
Pileup handling bug fix offline/framework/frog/CreateFileList.pl	Fixed variable reference syntax error: changed $ OO_bkgpileup (with space) to $OO_bkgpileup in the OO_pileupstring assignment within the else branch of pileup handling logic

Possibly related PRs

• sPHENIX-Collaboration/coresoftware#4133: Previous modification to the same pileup handling logic that this PR corrects a variable-reference bug from.

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