fixed output file naming

download.py

@@ -41,7 +41,7 @@ for photo_number in range(int(runs)):
 
     b = [bytes.fromhex(h.strip().decode()) for h in d]
     image = twobpp.convert_photo(b, colors)
-    if arguments['-b'] != 0:
+    if runs != 1:
         p = arguments["<path>"].split(".")
         image.save(f"{p[0]}-{photo_number}.{p[1]}")
     else: