Fix the issue that using 'goreportcard-cli -v' will output errors (swaggo#872)

[windvalley]

Describe the PR
Fix the issue that using 'goreportcard-cli -v' will output errors (#872)

Relation issue
#872

[codecov]

Codecov Report

Merging #873 (0213f4b) into master (3d90fc0) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #873   +/-   ##
=======================================
  Coverage   84.83%   84.83%           
=======================================
  Files           8        8           
  Lines        1649     1649           
=======================================
  Hits         1399     1399           
  Misses        145      145           
  Partials      105      105           

Impacted Files	Coverage Δ
gen/gen.go	95.27% <ø> (ø)

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[ubogdan]

@windvalley Thanks for your contribution.