Fix index out of range problem

routersploit/modules/exploits/multi/misfortune_cookie.py

@@ -131,7 +131,7 @@ class Exploit(exploits.Exploit):
 
     def run(self):
         devices = self._Exploit__info__['devices']
-        if self.device == '' or re.match("^\d+?$", self.device) is None or int(self.device) < 0 or int(self.device) > len(devices):
+        if self.device == '' or re.match("^\d+?$", self.device) is None or int(self.device) < 0 or int(self.device) >= len(devices):
             print_error("Invalid device identifier option")
             return
         number = devices[int(self.device)]['number']