fixes junos_command module paring of wait_for strings (#5083)

The junos_command module wasn't properly parsing strings to apply
conditionals due to the return value not being converted to json
before the results where handed to the runner.

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

@@ -151,12 +151,6 @@ failed_conditionals:
   retured: failed
   type: list
   sample: ['...', '...']
-
-xml:
-  description: The raw XML reply from the device
-  returned: when format is xml
-  type: list
-  sample: [['...', '...'], ['...', '...']]
 """
 
 import ansible.module_utils.junos
@@ -164,6 +158,7 @@ from ansible.module_utils.basic import get_exception
 from ansible.module_utils.network import NetworkModule, NetworkError
 from ansible.module_utils.netcli import CommandRunner
 from ansible.module_utils.netcli import AddCommandError, FailedConditionsError
+from ansible.module_utils.netcli import FailedConditionalError
 from ansible.module_utils.junos import xml_to_json
 from ansible.module_utils.six import string_types
 
@@ -279,24 +274,23 @@ def main():
     except FailedConditionsError:
         exc = get_exception()
         module.fail_json(msg=str(exc), failed_conditions=exc.failed_conditions)
+    except FailedConditionalError:
+        exc = get_exception()
+        module.fail_json(msg=str(exc), failed_conditional=exc.failed_conditional)
     except NetworkError:
         exc = get_exception()
         module.fail_json(msg=str(exc))
 
     result = dict(changed=False, stdout=list())
-    xmlout = list()
 
     for cmd in commands:
         try:
             output = runner.get_command(cmd['command'], cmd.get('output'))
-            xmlout.append(output)
-            output = xml_to_json(output)
         except ValueError:
             output = 'command not executed due to check_mode, see warnings'
         result['stdout'].append(output)
 
     result['warnings'] = warnings
-    result['xml'] = xmlout
     result['stdout_lines'] = list(to_lines(result['stdout']))
 
     module.exit_json(**result)