main: Correct defer handling in main entrypoint. #351
Merged
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This is rebased on #350.
This refactors the main code into a separate function that returns an error instead of invoking
os.Exit
directly to ensure that the defers that are setup prior to the exits are run as intended.The
main
func will now exit with the non-zero error code when an error is returned from the refactored separate func.