core/killall.c: prevent segfault and initialize pids
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@ -189,7 +189,7 @@ static int killall(int sig, Set *pids) {
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void broadcast_signal(int sig, bool wait_for_exit) {
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sigset_t mask, oldmask;
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Set *pids;
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Set *pids = NULL;
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if (wait_for_exit)
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pids = set_new(trivial_hash_func, trivial_compare_func);
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