added missing module docstring
diff --git a/Lib/distutils/command/install_lib.py b/Lib/distutils/command/install_lib.py
index fed7e53..4c62c71 100644
--- a/Lib/distutils/command/install_lib.py
+++ b/Lib/distutils/command/install_lib.py
@@ -1,3 +1,8 @@
+"""distutils.command.install_lib
+
+Implements the Distutils 'install_lib' command
+(install all Python modules)."""
+
 __revision__ = "$Id$"
 
 import os