Fix enable subprompt (#34723)

* Look for password prompts at the beginning of the line only

* Adds secondary checks for the supplied sub-prompts

Handles the case for enable prompts where enable_pass may be incorrect
and the deivce is still prompting for the password

lib/ansible/plugins/connection/network_cli.py

@@ -395,6 +395,10 @@ class Connection(ConnectionBase):
             window = self._strip(recv.read())
             if prompts and not handled:
                 handled = self._handle_prompt(window, prompts, answer, newline)
+            elif prompts and handled:
+                # check again even when handled, a sub-prompt could be
+                # repeating (like in the case of a wrong enable password, etc)
+                self._handle_prompt(window, prompts, answer, newline)
 
             if self._find_prompt(window):
                 self._last_response = recv.getvalue()

lib/ansible/plugins/terminal/ios.py

@@ -63,7 +63,7 @@ class TerminalModule(TerminalBase):
         if passwd:
             # Note: python-3.5 cannot combine u"" and r"" together.  Thus make
             # an r string and use to_text to ensure it's text on both py2 and py3.
-            cmd[u'prompt'] = to_text(r"[\r\n]?password: $", errors='surrogate_or_strict')
+            cmd[u'prompt'] = to_text(r"[\r\n]password: $", errors='surrogate_or_strict')
             cmd[u'answer'] = passwd
 
         try: