TSQL to rename and script new modified stored procedure

SELECT 'EXEC SP_RENAME ''' + name + ''' , ''' + 'X_20170223_' + name + ''''
FROM sys.objects
WHERE type = 'P'
and modify_date > '2016-09-09 16:37:38.913'
and name not like 'X_%'
order by modify_date desc

SELECT      M.definition
FROM        sys.procedures P WITH(NOLOCK)
INNER JOIN  sys.sql_modules M WITH(NOLOCK)ON  M.object_id = P.object_id
WHERE EXISTS (SELECT name, create_date, modify_date
FROM sys.objects O
WHERE type = 'P'
and modify_date > '2016-09-09 16:37:38.913'
and name not like 'X_%'
AND O.name = P.name  )