minor update for nxos

This fixes a minor bug in the nxos config module to ensure that both the
cli and nxapi transport return the running config as a string and not
a list object.

lib/ansible/module_utils/nxos.py

@@ -203,10 +203,8 @@ class NetworkModule(AnsibleModule):
         if self.params.get('include_defaults'):
             cmd += ' all'
 
-        if self.params['transport'] == 'cli':
-            return self.execute(cmd)[0]
-        else:
-            return self.execute(cmd)
+        response = self.execute(cmd)
+        return response[0]
 
 def get_module(**kwargs):
     """Return instance of NetworkModule