Explicitly document that `app.run(main)` essentially does `sys.exit(main(...))`. This makes the behavior of `return "some string"` documented and supported.
Explicitly document that `app.run(main)` essentially does `sys.exit(main(...))`. This makes the behavior of `return "some string"` documented and supported.

I wasn't sure how much of the original wording to keep, but opted to change it as it seems misleading -- on my system, for example, `return 0` and `return 256` do the same thing (eeek).

PiperOrigin-RevId: 333770740
Change-Id: Ifcac0a03793b1b3cf8818443ce8c4f86afe51a4b

abseil/abseil-py,abseil/abseil-py