fix(git-node): handle single-line commit messages

[aduh95]

Fixes: #1058

[codecov]

Codecov Report

❌ Patch coverage is 70.45455% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.74%. Comparing base (a9048c8) to head (d941035).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/landing_session.js	70.45%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1059      +/-   ##
==========================================
- Coverage   80.56%   71.74%   -8.83%     
==========================================
  Files          39       41       +2     
  Lines        4847     5878    +1031     
==========================================
+ Hits         3905     4217     +312     
- Misses        942     1661     +719     

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[aduh95]

/cc @nodejs/node-core-utils the CQ is mostly broken without this, can I get some reviews?

[marco-ippolito]

RSLGTM