Ensure proper conversion while backing up of junos config (#28958)

* Ensure proper conversion while backing up of junos config

* Minor changes

* Fix review comment

*  Open config backup file in binary mode

lib/ansible/module_utils/junos.py

@@ -121,7 +121,7 @@ def load_configuration(module, candidate=None, action='merge', rollback=None, fo
             if format == 'xml':
                 cfg.append(fromstring(candidate))
             else:
-                cfg.text = to_text(candidate, encoding='latin1')
+                cfg.text = to_text(candidate, encoding='latin-1')
         else:
             cfg.append(candidate)
     return send_request(module, obj)
@@ -187,7 +187,7 @@ def get_diff(module):
 
     output = reply.find('.//configuration-output')
     if output is not None:
-        return to_text(output.text, encoding='latin1').strip()
+        return to_text(output.text, encoding='latin-1').strip()
 
 
 def load_config(module, candidate, warnings, action='merge', format='xml'):

lib/ansible/modules/network/junos/junos_config.py

@@ -256,7 +256,7 @@ def filter_delete_statements(module, candidate):
     if match is None:
         # Could not find configuration-set in reply, perhaps device does not support it?
         return candidate
-    config = to_native(match.text, encoding='latin1')
+    config = to_native(match.text, encoding='latin-1')
 
     modified_candidate = candidate[:]
     for index, line in reversed(list(enumerate(candidate))):

lib/ansible/plugins/action/junos_config.py

@@ -27,7 +27,7 @@ import glob
 from ansible.plugins.action.junos import ActionModule as _ActionModule
 from ansible.module_utils._text import to_text
 from ansible.module_utils.six.moves.urllib.parse import urlsplit
-from ansible.module_utils._text import to_native
+from ansible.module_utils._text import to_bytes
 from ansible.utils.vars import merge_hash
 
 PRIVATE_KEYS_RE = re.compile('__.+__')
@@ -75,7 +75,8 @@ class ActionModule(_ActionModule):
             os.remove(fn)
         tstamp = time.strftime("%Y-%m-%d@%H:%M:%S", time.localtime(time.time()))
         filename = '%s/%s_config.%s' % (backup_path, host, tstamp)
-        open(filename, 'w').write(to_native(contents, encoding='latin1'))
+        with open(filename, 'wb') as f:
+            f.write(to_bytes(to_text(contents, encoding='latin-1'), encoding='utf-8'))
         return filename
 
     def _handle_template(self):