[Misc] fix typo in llm_engine init logging (vllm-project#4428)

Author: DefTruth

vllm/engine/llm_engine.py

@@ -101,7 +101,7 @@ def __init__(
             "skip_tokenizer_init=%s, tokenizer_mode=%s, revision=%s, "
             "tokenizer_revision=%s, trust_remote_code=%s, dtype=%s, "
             "max_seq_len=%d, download_dir=%r, load_format=%s, "
-            "tensor_parallel_size=%d, disable_custom_all_reduce=%s",
+            "tensor_parallel_size=%d, disable_custom_all_reduce=%s, ",
             "quantization=%s, sparsity=%s",
             "enforce_eager=%s, kv_cache_dtype=%s, "
             "quantization_param_path=%s, device_config=%s, "