env.Gop => XGo; SaveWithGopMod => SaveWithXGoMod

[xushiwei]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 90.90909% with 2 lines in your changes missing coverage. Please review.

Project coverage is 91.77%. Comparing base (b01fcff) to head (65d9d10).
Report is 10 commits behind head on main.

Files with missing lines	Patch %	Lines
modload/module.go	90.90%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #110   +/-   ##
=======================================
  Coverage   91.77%   91.77%           
=======================================
  Files           6        6           
  Lines         802      802           
=======================================
  Hits          736      736           
  Misses         48       48           
  Partials       18       18           

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