quick fix

Author: gabriellarson

convert_hf_to_gguf.py

@@ -3193,7 +3193,7 @@ def _set_vocab_dream(self):
 
         # Set GGUF tokenizer data
         self.gguf_writer.add_tokenizer_model("gpt2")
-        self.gguf_writer.add_tokenizer_pre("gpt2")
+        self.gguf_writer.add_tokenizer_pre("default")
         self.gguf_writer.add_token_list(tokens)
         self.gguf_writer.add_token_types(toktypes)