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_dumb.py b/Lib/packaging/command/bdist_dumb.py
index 309f64f..548e3c4 100644
--- a/Lib/packaging/command/bdist_dumb.py
+++ b/Lib/packaging/command/bdist_dumb.py
@@ -80,8 +80,8 @@
         if not self.skip_build:
             self.run_command('build')
 
-        install = self.get_reinitialized_command('install_dist',
-                                                 reinit_subcommands=True)
+        install = self.reinitialize_command('install_dist',
+                                            reinit_subcommands=True)
         install.root = self.bdist_dir
         install.skip_build = self.skip_build
         install.warn_dir = False