Prevent invalid variable

Make text in kobo_auth_screen consistent

cps/admin.py

@@ -613,6 +613,7 @@ def _configuration_update_helper():
     reboot_required = False
     db_change = False
     to_save = request.form.to_dict()
+    gdriveError = None
 
     to_save['config_calibre_dir'] = re.sub('[\\/]metadata\.db$', '', to_save['config_calibre_dir'], flags=re.IGNORECASE)
     try:

cps/templates/generate_kobo_auth_url.html

@@ -5,7 +5,7 @@
     {{_('Open the .kobo/Kobo eReader.conf file in a text editor and add (or edit):')}}</a>
   </p>
   <p>
-    {% if not warning %}'api_endpoint='{{kobo_auth_url}}{% else %}{{warning}}{% endif %}</a>
+    {% if not warning %}api_endpoint={{kobo_auth_url}}{% else %}{{warning}}{% endif %}</a>
   </p>
   <p>
 </div>