Fix broken link to MSDN (#102355)

Author: imba-tjd

Lib/socket.py

@@ -910,7 +910,7 @@ def create_server(address, *, family=AF_INET, backlog=None, reuse_port=False,
  # address, effectively preventing this one from accepting
  # connections. Also, it may set the process in a state where
  # it'll no longer respond to any signals or graceful kills.
- # See: msdn2.microsoft.com/en-us/library/ms740621(VS.85).aspx
+ # See: https://learn.microsoft.com/windows/win32/winsock/using-so-reuseaddr-and-so-exclusiveaddruse
  if os.name not in ('nt', 'cygwin') and \
  hasattr(_socket, 'SO_REUSEADDR'):
  try:

Lib/test/support/socket_helper.py

@@ -63,7 +63,7 @@ def find_unused_port(family=socket.AF_INET, socktype=socket.SOCK_STREAM):
  http://bugs.python.org/issue2550 for more info. The following site also
  has a very thorough description about the implications of both REUSEADDR
  and EXCLUSIVEADDRUSE on Windows:
- http://msdn2.microsoft.com/en-us/library/ms740621(VS.85).aspx)
+ https://learn.microsoft.com/windows/win32/winsock/using-so-reuseaddr-and-so-exclusiveaddruse
 
  XXX: although this approach is a vast improvement on previous attempts to
  elicit unused ports, it rests heavily on the assumption that the ephemeral