Renamed all command classes so they're exactly the same as the name of the
command itself: no more of this "FooBar class for foo_bar command"
silliness.
diff --git a/Lib/distutils/command/build_lib.py b/Lib/distutils/command/build_lib.py
index 6571281..749b0c2 100644
--- a/Lib/distutils/command/build_lib.py
+++ b/Lib/distutils/command/build_lib.py
@@ -26,7 +26,7 @@
 from distutils.ccompiler import new_compiler
 
 
-class BuildLib (Command):
+class build_lib (Command):
 
     options = [('debug', 'g',
                 "compile with debugging information"),