adjust text output

lib/control.py

@@ -118,7 +118,7 @@ class Controller:
                     try:
                         thread.join()
                     except BaseException as ERR:
-                        print(f"[control] action `{name}` encountered exception"
+                        print(f"\n[control] action `{name}` encountered exception"
                             f" {type(ERR).__name__}: '{ERR}'")
                         print("[control] terminating all actions...")
                         raise ERR