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Document that std::os::unix::process::CommandExt.uid() triggers setgroups(0,0) #39186
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A-processArea: `std::process` and `std::env`Area: `std::process` and `std::env`C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.E-easyCall for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.E-help-wantedCall for participation: Help is requested to fix this issue.Call for participation: Help is requested to fix this issue.T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.
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A-processArea: `std::process` and `std::env`Area: `std::process` and `std::env`C-enhancementCategory: An issue proposing an enhancement or a PR with one.Category: An issue proposing an enhancement or a PR with one.E-easyCall for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.E-help-wantedCall for participation: Help is requested to fix this issue.Call for participation: Help is requested to fix this issue.T-libs-apiRelevant to the library API team, which will review and decide on the PR/issue.Relevant to the library API team, which will review and decide on the PR/issue.
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While digging around for something else I have just discovered that setting the UID for a subprocess with
CommandExt.uid()also causes a call tosetgroups(0,0)in the child. This should be documented.(Related to #38527)