Fix go-fuzz

[6543]

followup of #15175

[codecov-commenter]

Codecov Report

Merging #15596 (3dd9d49) into master (834fc74) will increase coverage by 0.11%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #15596      +/-   ##
==========================================
+ Coverage   43.81%   43.92%   +0.11%     
==========================================
  Files         678      678              
  Lines       81741    81741              
==========================================
+ Hits        35816    35907      +91     
+ Misses      40087    39979     -108     
- Partials     5838     5855      +17     

Impacted Files	Coverage Δ
services/pull/pull.go	43.47% <0.00%> (+0.45%)	⬆️
routers/api/v1/repo/pull.go	28.74% <0.00%> (+0.59%)	⬆️
modules/notification/notification.go	87.60% <0.00%> (+2.47%)	⬆️
modules/notification/base/null.go	78.94% <0.00%> (+2.63%)	⬆️
modules/queue/manager.go	64.20% <0.00%> (+2.84%)	⬆️
modules/charset/charset.go	75.75% <0.00%> (+4.04%)	⬆️
modules/git/commit.go	56.47% <0.00%> (+4.31%)	⬆️
modules/notification/mail/mail.go	38.77% <0.00%> (+5.10%)	⬆️
modules/notification/ui/ui.go	64.10% <0.00%> (+5.12%)	⬆️
models/issue_comment.go	52.72% <0.00%> (+7.18%)	⬆️

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[lunny]

It seems lint doesn't check tools folder.