actually export all brainpool curves

Author: tomato42

src/ecdsa/curves.py

@@ -9,7 +9,7 @@
 __all__ = ["UnknownCurveError", "orderlen", "Curve", "NIST192p",
            "NIST224p", "NIST256p", "NIST384p", "NIST521p", "curves",
            "find_curve", "SECP256k1", "BRAINPOOLP160r1", "BRAINPOOLP192r1",
-           "BRAINPOOLP224r1", "BRAINPOOLP256r1" "BRAINPOOLP320r1",
+           "BRAINPOOLP224r1", "BRAINPOOLP256r1", "BRAINPOOLP320r1",
            "BRAINPOOLP384r1", "BRAINPOOLP512r1"]