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The compiler reports this because show_gitcomp() never actually returns a value: "parse-options.c", line 520: warning: Function has no return statement : show_gitcomp We could shut the compiler up. But instead let's not bury exit() too deep. Do the same as internal -h handling, return a special error code and handle the exit() in parse_options() (and other parse_options_step() callers) instead. Reported-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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