fix stupid crypto bug

sql-edition/servers/VendingMachine.py

@@ -44,6 +44,7 @@ class VendingMachine:
 			except socket.error:
 				raise VendingException('failed to read input from vending machine')
 			if s == '': raise VendingException('nothing read!')
+			if (s != '#' and s != '%') and state == 1: prefix += s
 			if s == '\n' or s == '\r':
 				state = 1
 				prefix = ''
@@ -114,7 +115,7 @@ class VendingMachine:
 	def vend(self, item):
 		if not re.search('^[0-9][0-9]$', item):
 			return (False, 'Invalid item requested (%s)'%item)
-		self.wfh.write(self.authed_message(('V%s\n'%item)+'\n'))
+		self.wfh.write(self.authed_message(('V%s'%item))+'\n')
 		(code, string) = self.get_response()
 		return (code == '100', code, string)