Fixing nxos_ntp (#20651)

* Fixing nxos_ntp

* Fixing style issues

lib/ansible/modules/network/nxos/nxos_ntp.py

@@ -180,11 +180,15 @@ def get_ntp_source(module):
 def get_ntp_peer(module):
     command = 'show run | inc ntp.(server|peer)'
     ntp_peer_list = []
-    ntp = execute_show_command(
+    response = execute_show_command(
         command, module, command_type='cli_show_ascii')
-    if ntp:
-        ntp = ntp[0]
 
+    if response:
+        if isinstance(response, list):
+            ntp = response[0]
+        else:
+            ntp = response
+        if ntp:
             ntp_regex = (
                 ".*ntp\s(server\s(?P<address>\S+)|peer\s(?P<peer_address>\S+))"
                 "\s*((?P<prefer>prefer)\s*)?(use-vrf\s(?P<vrf_name>\S+)\s*)?"
@@ -424,4 +428,3 @@ def main():
 from ansible.module_utils.basic import *
 if __name__ == '__main__':
     main()
-