PEP 8 cleanup. (#20789)

* PEP 8 E703 cleanup.
* PEP 8 E701 cleanup.
* PEP 8 E711 cleanup.
* PEP 8 W191 and E101 cleanup.

lib/ansible/utils/cmd_functions.py

@@ -75,7 +75,7 @@ def run_cmd(cmd, live=False, readsize=10):
         if (not rpipes or not rfd) and p.poll() is not None:
             break
         # Calling wait while there are still pipes to read can cause a lock
-        elif not rpipes and p.poll() == None:
+        elif not rpipes and p.poll() is None:
             p.wait()
 
     return p.returncode, stdout, stderr