fix: Display uint values in decimal instead of hex in diffs

[fredbi]

Merged from stretchr#1223

The issue is described at stretchr#400

Thanks to the original contributor @mnotti

Change type

Please select: 🆕 New feature or enhancement|🔧 Bug fix'|📃 Documentation update

Short description

Fixes

Full description

Checklist

• I have signed all my commits with my name and email (see DCO. This does not require a PGP-signed commit
• I have rebased and squashed my work, so only one commit remains
• I have added tests to cover my changes.
• I have properly enriched go doc comments in code.
• I have properly documented any breaking change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.69%. Comparing base (54b53a7) to head (0d32564).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #10   +/-   ##
=======================================
  Coverage   95.69%   95.69%           
=======================================
  Files          37       37           
  Lines        5646     5646           
=======================================
  Hits         5403     5403           
  Misses        169      169           
  Partials       74       74           

Flag	Coverage Δ
oldstable-macos-latest	95.69% <100.00%> (ø)
oldstable-ubuntu-latest	95.69% <100.00%> (ø)
oldstable-windows-latest	95.69% <100.00%> (ø)
stable-macos-latest	95.69% <100.00%> (ø)
stable-ubuntu-latest	95.69% <100.00%> (ø)
stable-windows-latest	95.69% <100.00%> (ø)

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