Modify signature of Protocol.__init__

Replaced the parameter 'packet' with *args

- Modify reference to IETF RFC of the TCP protocol

protocols.py

@@ -15,7 +15,7 @@ class Protocol(BigEndianStructure):
     def __new__(cls, packet):
         return cls.from_buffer_copy(packet)
 
-    def __init__(self, packet=None):
+    def __init__(self, *args):
         super().__init__()
         self.encapsulated_proto = None
 
@@ -127,7 +127,7 @@ def __init__(self, packet: bytes):
         self.target_proto = inet_ntop(AF_INET, bytes(self.tpa))
 
 
-class TCP(Protocol):                # IETF RFC 675
+class TCP(Protocol):                # IETF RFC 793
     _fields_ = [
         ("sport", c_uint16),        # Source port
         ("dport", c_uint16),        # Destination port