utf8 overlong encode

usage: utf8encode.py [-h] [-b NUM] string

positional arguments:
  string      string to be encoded

optional arguments:
  -h, --help  show this help message and exit
  -b NUM      Number of bytes

example

• utf8encode.py -b 1 "../"
  • %2e%2e%2f
• utf8encode.py "../"
  • %c0%ae%c0%ae%c0%af