docs: Reference SDK-2696 on the ldclient.util logger comment

Author: jsonbailey

ldclient/impl/util.py

@@ -18,7 +18,8 @@ def timedelta_millis(delta: timedelta) -> float:
     return delta / timedelta(milliseconds=1)
 
 
-log = logging.getLogger('ldclient.util')  # historical logger name
+# historical logger name; cleaning up the SDK's logger names is tracked in SDK-2696
+log = logging.getLogger('ldclient.util')
 
 
 __LONG_SCALE__ = float(0xFFFFFFFFFFFFFFF)