avoid implying that the error can be anything but nil

[squeedee]

No description provided.

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (55557b2) 60.62% compared to head (d772a1c) 60.62%.

❗ Current head d772a1c differs from pull request most recent head 3e414b5. Consider uploading reports for the commit 3e414b5 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #417   +/-   ##
=======================================
  Coverage   60.62%   60.62%           
=======================================
  Files          24       24           
  Lines        2334     2334           
=======================================
  Hits         1415     1415           
  Misses        835      835           
  Partials       84       84           

Files Changed	Coverage Δ
reconcilers/child.go	83.82% <100.00%> (ø)

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