Fixed comment length violation

Signed-off-by: Adrian Garcia <adrian.garcia@inceptionai.ai>

Author: mizadri

vllm/entrypoints/openai/serving_chat.py

@@ -850,7 +850,7 @@ async def chat_completion_stream_generator(
                         previous_texts[i] = current_text
                         all_previous_token_ids[i] = current_token_ids
                     else:
-                        # Update previous_texts for comprehensive logging even in simple content case
+                        # Update for comprehensive logging even in simple case
                         assert previous_texts is not None
                         previous_texts[i] += delta_text