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Fix cmd_help reading beyond input array for ?O (#7477)
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@ -255,7 +255,7 @@ static int cmd_help(void *data, const char *input) {
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if (input[1] == 'j') {
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json = true;
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}
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const int id = (input[2]== ' ')
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const int id = (input[1] != '\0' && input[2] == ' ')
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?(int)r_num_math (core->num, input + 2): -1;
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char *ops = r_asm_mnemonics (core->assembler, id, json);
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if (ops) {
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