Insert a warning in the output that the result is automatically generated.

src/server/testsuite/lyskomd.0/gen-15.py

@@ -520,4 +520,6 @@ def generate_test():
     special_cases()
     disco()
 
+print "# Automatically generated by gen-15.py.  Do not edit."
 generate_test()
+print "# Automatically generated by gen-15.py.  Do not edit."

src/server/testsuite/lyskomd.0/gen-19.py

@@ -525,4 +525,6 @@ def generate_test():
     special_cases()
     disco()
 
+print "# Automatically generated by gen-19.py.  Do not edit."
 generate_test()
+print "# Automatically generated by gen-19.py.  Do not edit."