Update MAC_address wikipedia URL in comments (#29019)

Author: 180909

Lib/uuid.py

@@ -401,7 +401,7 @@ def _get_command_stdout(command, *args):
 # over locally administered ones since the former are globally unique, but
 # we'll return the first of the latter found if that's all the machine has.
 #
-# See https://en.wikipedia.org/wiki/MAC_address#Universal_vs._local
+# See https://en.wikipedia.org/wiki/MAC_address#Universal_vs._local_(U/L_bit)
 
 def _is_universal(mac):
     return not (mac & (1 << 41))
@@ -615,7 +615,7 @@ def _random_getnode():
     # significant bit of the first octet".  This works out to be the 41st bit
     # counting from 1 being the least significant bit, or 1<<40.
     #
-    # See https://en.wikipedia.org/wiki/MAC_address#Unicast_vs._multicast
+    # See https://en.wikipedia.org/w/index.php?title=MAC_address&oldid=1128764812#Universal_vs._local_(U/L_bit)
     import random
     return random.getrandbits(48) | (1 << 40)