Update collatz v4.py

updated title

Author: SoupCat-Py

collatz v4.py

@@ -53,7 +53,7 @@ def __init__(self):
         super().__init__()
 
         # setup
-        self.title('collatz version 4')
+        self.title('')
         self.resizable = (False, False)
         initialize_writable_files()
 
@@ -357,4 +357,4 @@ def show(self, hn, hni, t, ta, ts, e, o):
 if __name__ == '__main__':
     app = Panel()
     app.mainloop()
-os._exit(0)
+os._exit(0)