chore(config/env): polish watcher

[xuyang2]

Should fix #1340

[codecov-commenter]

Codecov Report

Merging #1341 (451bb79) into main (80378ca) will increase coverage by 0.24%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1341      +/-   ##
==========================================
+ Coverage   63.03%   63.27%   +0.24%     
==========================================
  Files          61       61              
  Lines        2824     2821       -3     
==========================================
+ Hits         1780     1785       +5     
+ Misses        896      888       -8     
  Partials      148      148              

Impacted Files	Coverage Δ
config/env/watcher.go	100.00% <100.00%> (+61.53%)	⬆️

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[shenqidebaozi]

合并到 main 后，golint 出错了，是否可以继续提交一个 pr 来修复它？

[shenqidebaozi]

合并到 main 后，golint 出错了，是否可以继续提交一个 pr 来修复它？

我提了。