Fixes handling of terminal_initial_prompt on dellos6 and dellos9 devices (#45273)

* Fix terminal initial prompt on dellos6 and dellos9

* Fix_pylint

lib/ansible/plugins/terminal/dellos6.py

@@ -50,6 +50,12 @@ class TerminalModule(TerminalBase):
 
     ]
 
+    terminal_initial_prompt = br"\(y/n\)"
+
+    terminal_initial_answer = b"y"
+
+    terminal_inital_prompt_newline = False
+
     def on_become(self, passwd=None):
         if self._get_prompt().endswith('#'):
             return

lib/ansible/plugins/terminal/dellos9.py

@@ -45,6 +45,10 @@ class TerminalModule(TerminalBase):
         re.compile(br"'[^']' +returned error code: ?\d+"),
     ]
 
+    terminal_initial_prompt = br"\[y/n\]:"
+
+    terminal_initial_answer = b"y"
+
     def on_open_shell(self):
         try:
             self._exec_cli_command(b'terminal length 0')