Broke the update_header method into two separate methods

pudb/debugger.py

@@ -2841,15 +2841,15 @@ def interaction(self, exc_tuple, show_exc_dialog=True):
                 (None, " "),
                 ("header warning", "[POST-MORTEM MODE]")
                 ])
-            self.update_header(override=True)
+            self.show_header()
             CONFIG["hide_header"] = False
 
         elif exc_tuple is not None:
             caption.extend([
                 (None, " "),
                 ("header warning", "[PROCESSING EXCEPTION - hit 'e' to examine]")
                 ])
-            self.update_header(override=True)
+            self.show_header()
             CONFIG["hide_header"] = False
 
 
@@ -2965,11 +2965,14 @@ def make_frame_ui(i, frame_lineno):
     def update_cmdline_win(self):
         self.set_cmdline_state(not CONFIG["hide_cmdline_win"])
 
-    def update_header(self, override=None):
-        if override is not None:
-            self.top._w.header = self.header if override else None
+    def update_header(self):
+        """Update the header to reflect the current settings."""
         self.top._w.header = self.header if not CONFIG["hide_header"] else None
 
+    def show_header(self):
+        """Show the header."""
+        self.top._w.header = self.header
+
     # }}}
 
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