fix undefined packet reference in parsing.position

aprslib/__init__.py

@@ -41,7 +41,7 @@ from datetime import date as _date
 __date__ = str(_date.today())
 del _date
 
-__version__ = "0.6.43"
+__version__ = "0.6.44"
 __author__ = "Rossen Georgiev"
 __all__ = ['IS', 'parse', 'passcode']
 

aprslib/parsing/position.py

@@ -41,7 +41,7 @@ def parse_position(packet_type, body):
         parsed.update(result)
 
     if len(body) == 0 and 'timestamp' in parsed:
-        raise ParseError("invalid position report format", packet)
+        raise ParseError("invalid position report format")
 
     # decode body
     body, result = parse_compressed(body)