Return a non-zero exit code upon error #882
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This brings us in line with the Unix standard of returning non-zero for a failed command: https://www.gnu.org/software/bash/manual/html_node/Exit-Status.html Also, this will allow any callers (like google-java-format-diff.py) to respond appropriately. [A change](http://r.android.com/2257232) needed to be reverted because `google-java-format-diff.py` was failing silently, so the author wasn't aware that their change caused a pre-upload hook to stop working. Fixes #848 COPYBARA_INTEGRATE_REVIEW=#848 from abstractlyZach:return_nonzero 06b2d36 PiperOrigin-RevId: 502399096
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Return a non-zero exit code upon error
This brings us in line with the Unix standard of returning non-zero for a failed command:
https://www.gnu.org/software/bash/manual/html_node/Exit-Status.html
Also, this will allow any callers (like google-java-format-diff.py) to respond appropriately.
A change needed to be reverted because
google-java-format-diff.pywas failing silently, so the author wasn't aware that their change caused a pre-upload hook to stop working.
Fixes #848
FUTURE_COPYBARA_INTEGRATE_REVIEW=#848 from abstractlyZach:return_nonzero 06b2d36