fix issue #1747

[qinyuguang]

No description provided.

[codecov-commenter]

Codecov Report

Merging #1749 (9ff5f39) into develop (ee29b28) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           develop    #1749      +/-   ##
===========================================
- Coverage    71.26%   71.25%   -0.01%     
===========================================
  Files          457      457              
  Lines        43448    43450       +2     
===========================================
- Hits         30964    30962       -2     
- Misses       10501    10504       +3     
- Partials      1983     1984       +1     

Flag	Coverage Δ
go-1.15	71.25% <100.00%> (+0.01%)	⬆️
go-1.16	?
go-1.17	71.24% <100.00%> (+0.02%)	⬆️

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Impacted Files	Coverage Δ
encoding/gjson/gjson_implements.go	100.00% <100.00%> (ø)
net/gtcp/gtcp_pool.go	34.09% <0.00%> (-4.55%)	⬇️
os/gspath/gspath_cache.go	84.21% <0.00%> (ø)

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