Make do_quit() silent, move the farewell message to main().

av98.py

@@ -256,6 +256,7 @@ class GeminiClient(cmd.Cmd):
             "redirects_followed": 0
         }
 
+        self._stop = False
         self._init_config()
         ui_out.debug("Raw buffer: ", self.raw_file_buffer)
         ui_out.debug("Rendered buffer: ", self.rendered_file_buffer)
@@ -877,6 +878,9 @@ Slow internet connection?  Use 'set timeout' to be more patient.""")
 
     # Cmd implementation follows
 
+    def postcmd(self, stop, line):
+        return self._stop
+
     def default(self, line):
         """
         This is called when none of the do_* methods match the user's
@@ -1378,10 +1382,8 @@ current gemini browsing session."""
         self.client_cert_manager.cleanup()
         # Apply permanent redirects to bookmarks
         self._maintain_bookmarks()
-        # Say goodbye
-        print()
-        print("Thank you for flying AV-98!")
-        sys.exit()
+        # Exit command loop
+        self._stop = True
 
     do_exit = do_quit
 
@@ -1448,12 +1450,18 @@ def main():
                 gc.cmdqueue.append("tour %s" % url)
             gc.cmdqueue.append("tour")
 
-    # Endless interpret loop
+    # Endless interpret loop until user quits
     while True:
         try:
             gc.cmdloop()
+            break
         except KeyboardInterrupt:
             print("")
 
+    # Say goodbye
+    print()
+    print("Thank you for flying AV-98!")
+    sys.exit()
+
 if __name__ == '__main__':
     main()