Fix: tuple index out of range on multisite install

ee/cli/plugins/site_functions.py

@@ -218,7 +218,7 @@ def setupwordpress(self, data):
                           "\n\ndefine(\'WP_DEBUG\', false);"))
         EEShellExec.cmd_exec(self, "bash -c \"php /usr/bin/wp --allow-root "
                              + "core config "
-                             + "--dbname={0} --dbprefix={1} --dbhost={3} "
+                             + "--dbname={0} --dbprefix={1} --dbhost={2} "
                              .format(data['ee_db_name'], ee_wp_prefix, data['ee_db_host'])
                              + "--dbuser={0} --dbpass={1} "
                                "--extra-php<<PHP \n {2} {3} {4}\nPHP\""