set CLOEXEC on diagnostic server FDs#55850

Merged

stephentoub merged 4 commits intodotnet:mainfrom

josalem:dev/josalem/diag-server-cloexec

Jul 18, 2021

Commits on Jul 16, 2021

set CLOEXEC on diagnostic server FDs
John Salem
committed
Add assert and comment
John Salem
committed
fix compiler warning
John Salem
committed
simplify asserts to appease all the different builds
John Salem
committed