tests/unwrap-message-id.py

convert: change socket mode from b'r+' to 'rwb' in cvs.py (issue6789)

'r+' mode used to open sockets for read/write operations, but '+' is not
supported in Python 3. We're using bytes with these sockets everywhere, so the
mode should have 'b'.  But the mode argument has to be str, not bytes.

import sys

for line in sys.stdin:
    if line.lower() in ("message-id: \n", "in-reply-to: \n"):
        line = line[:-2]
    print(line, end="")