Add note about tests

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-iptables?expand=0&rev=2

python-iptables.spec

@@ -47,6 +47,10 @@ python setup.py build
 %install
 python setup.py install --prefix=%{_prefix} --root=%{buildroot}
 
+# Can't really run tests, needs root access and modifies iptables of build host:
+#%%check
+#yes | python test.py
+
 %files
 %defattr(-,root,root,-)
 %doc NOTICE doc