Undo potentially confusing name change in packaging.

This method was named reinitialize_command in distutils and accompanied
by a comment suggesting to change it to get_reinitialized_command.
Following that, I did the change for distutils2, but it proved
confusing: The Distribution object has an internal cache of command
objects, to make sure only one instance is ever used, and the name
get_reinitialized_command could suggest that the object returned was
independent of that cache, which it was not.  I’m reverting the name
change to make code clearer.
diff --git a/Lib/packaging/command/bdist.py b/Lib/packaging/command/bdist.py
index b9d550b..e390cdc 100644
--- a/Lib/packaging/command/bdist.py
+++ b/Lib/packaging/command/bdist.py
@@ -126,7 +126,7 @@
         # Reinitialize and run each command.
         for i in range(len(self.formats)):
             cmd_name = commands[i]
-            sub_cmd = self.get_reinitialized_command(cmd_name)
+            sub_cmd = self.reinitialize_command(cmd_name)
             sub_cmd.format = self.formats[i]
 
             # passing the owner and group names for tar archiving