--- a/schemadiff.py	Wed Sep 26 16:21:59 2012 +0200
+++ b/schemadiff.py	Wed Sep 26 16:28:28 2012 +0200
@@ -1,4 +1,10 @@
 #!/usr/bin/env python3.2
+#
+# Print differences in database schema.
+#
+# Prints changes from source to destination.
+# SQL patch updates source database schema to destination schema.
+#
 
 from pgtoolkit import pgmanager, pgbrowser, pgdiff, toolbase