In various cases, we would say 'return log_warning()' or 'return log_error()'. Those functions return 0 if no error is passed in. For log_warning or log_error this doesn't make sense, and we generally want to propagate the error. In the few cases where the error should be ignored, I think it's better to split it in two, and call 'return 0' on a separate line. (cherry picked from commit c413bb28df0996be99fd6b3f2335dfe8739d62fb)
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