Fix nxos terminal plugin regex (#39659)

Fix nxos terminal plugin regex to match
command prompt without newline character as prefix

lib/ansible/plugins/terminal/nxos.py

@@ -28,7 +28,7 @@ from ansible.errors import AnsibleConnectionFailure
 class TerminalModule(TerminalBase):
 
     terminal_stdout_re = [
-        re.compile(br'[\r\n](?!\s*<)?(\x1b\S+)*[a-zA-Z_]{1}[a-zA-Z0-9-_.]*[>|#|%](?:\s*)*(\x1b\S+)*$'),
+        re.compile(br'[\r\n]?(?!\s*<)?(\x1b\S+)*[a-zA-Z_]{1}[a-zA-Z0-9-_.]*[>|#|%](?:\s*)*(\x1b\S+)*$'),
         re.compile(br'[\r\n]?[a-zA-Z]{1}[a-zA-Z0-9-_.]*\(.+\)#(?:\s*)$')
     ]