fix function signatures

Author: Jonathan Kliem

src/sage/libs/pari/convert_sage.pxd

@@ -11,5 +11,5 @@ cpdef Gen new_gen_from_rational(Rational self)
 
 cpdef pari_is_prime(Integer p)
 cpdef pari_is_prime_power(Integer q, bint get_data)
-cpdef ulong pari_maxprime()
-cpdef list pari_prime_range(long c_start, long c_stop, bint py_ints=False)
+cpdef unsigned long pari_maxprime()
+cpdef list pari_prime_range(long c_start, long c_stop, bint py_ints=*)

src/sage/libs/pari/convert_sage.pyx

@@ -530,7 +530,7 @@ cpdef pari_is_prime_power(Integer q, bint get_data):
         return (q, smallInteger(0)) if get_data else False
 
 
-cpdef ulong pari_maxprime():
+cpdef unsigned long pari_maxprime():
     """
     Return to which limit PARI has computed the primes.