Updated get_url module to process FTP results correctly [#3661] (#4601)

lib/ansible/modules/network/basics/get_url.py

@@ -227,7 +227,7 @@ def url_get(module, url, dest, use_proxy, last_mod_time, force, timeout=10, head
         module.exit_json(url=url, dest=dest, changed=False, msg=info.get('msg', ''))
 
     # create a temporary file and copy content to do checksum-based replacement
-    if info['status'] != 200 and not url.startswith('file:/'):
+    if info['status'] != 200 and not url.startswith('file:/') and not (url.startswith('ftp:/') and info.get('msg', '').startswith('OK')):
         module.fail_json(msg="Request failed", status_code=info['status'], response=info['msg'], url=url, dest=dest)
 
     if tmp_dest != '':