@@ -481,7 +481,7 @@ static std::string quote(std::string const &s) {
buf.push_back(ch);
} else if (ch < ' ') {
char tmp[7];
sprintf(tmp, "\\u%04x", ch);
snprintf(tmp, sizeof(tmp), "\\u%04x", ch);
buf.append(std::string(tmp));
} else {
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