bpo-40836: Add docstring to logging.fatal() and logging.Logger.fatal() (GH-20563)

Automerge-Triggered-By: @vsajip

Lib/logging/__init__.py

@@ -1480,7 +1480,11 @@ class Logger(Filterer):
         if self.isEnabledFor(CRITICAL):
             self._log(CRITICAL, msg, args, **kwargs)
 
-    fatal = critical
+    def fatal(self, msg, *args, **kwargs):
+        """
+        Don't use this method, use critical() instead.
+        """
+        self.critical(msg, *args, **kwargs)
 
     def log(self, level, msg, *args, **kwargs):
         """
@@ -2039,7 +2043,11 @@ def critical(msg, *args, **kwargs):
         basicConfig()
     root.critical(msg, *args, **kwargs)
 
-fatal = critical
+def fatal(msg, *args, **kwargs):
+    """
+    Don't use this function, use critical() instead.
+    """
+    critical(msg, *args, **kwargs)
 
 def error(msg, *args, **kwargs):
     """