Fix core getline that doesn't use replacement.
@@ -435,7 +435,7 @@ static Janet janet_core_hash(int32_t argc, Janet *argv) {
static Janet janet_core_getline(int32_t argc, Janet *argv) {
FILE *in = janet_dynfile("in", stdin);
FILE *out = janet_dynfile("out", stdout);
- janet_arity(argc, 0, 2);
+ janet_arity(argc, 0, 3);
JanetBuffer *buf = (argc >= 2) ? janet_getbuffer(argv, 1) : janet_buffer(10);
if (argc >= 1) {
const char *prompt = (const char *) janet_getstring(argv, 0);
