--- /dev/null
+# Test the --normalize examples from the man page.
+
+# The "control group" example.
+echo 127.0.0.1/8 | dist/build/hath/hath reduced
+>>>
+127.0.0.1/8
+>>>= 0
+
+# The --normalize flag in action.
+echo 127.0.0.1/8 | dist/build/hath/hath reduced --normalize
+>>>
+127.0.0.0/8
+>>>= 0