[deep-report] Fix 2 manual path-concatenation findings in pkg/gitutil and pkg/repoutil (LintMonster path-join cleanup)

[github-actions]

Description

LintMonster's daily report (discussion #54970) found 2 manual "/" path-concatenation findings in pkg/gitutil and pkg/repoutil (distinct from the function-length backlog tracked in #54699) and noted a "planned new issue" for them, but no corresponding open issue exists in the tracker — the fix appears to have fallen through between "planned" and "filed."

Expected Impact

Closes a small, concrete code-quality gap (2 findings) that was already identified and scoped by LintMonster but never actually tracked.

Suggested Fix

Replace the 2 manual "/" string-concatenation path-building sites in pkg/gitutil and pkg/repoutil with filepath.Join, per LintMonster's own "path-join cleanup" group definition.

Estimated Effort

Quick (< 1 hour)

Data Source

DeepReport analysis, 2026-08-23, based on discussion #54970 (LintMonster daily report).

Generated by 🔬 Deep Report · agent · 175.4 AIC · ⌖ 12 AIC · ⊞ 12.4K · ◷

• expires on Aug 24, 2026, 10:32 PM UTC-08:00

[github-actions]

🍪 Issue Monster selected this for Copilot

I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.

If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.

Om nom nom! 🍪

🍪 Om nom nom by Issue Monster · gpt54 · 5.22 AIC · ⌖ 9.64 AIC · ⊞ 11K · ◷