Fix error in parsing --osxtarget flag

makepanda/makepanda.py

@@ -245,7 +245,7 @@ def parseopts(args):
         if (len(OSXTARGET) != 4 or not OSXTARGET.startswith("10.")):
             usage("Invalid setting for OSXTARGET")
         try:
-            OSXTARGET = "10.%d" % (OSXTARGET[-1])
+            OSXTARGET = "10.%d" % (str(OSXTARGET[-1]))
         except:
             usage("Invalid setting for OSXTARGET")
     try: