[Misc] fix line length for entire codebase (#3444)

benchmarks/backend_request_func.py

@@ -110,7 +110,7 @@ async def async_request_vllm(
                             output.ttft = ttft
                     output.latency = time.perf_counter() - st
 
-                    # When streaming, '\0' is appended to the end of the response.
+                    # When streaming, '\0' is appended to the end of response.
                     body = data.decode("utf-8").strip("\0")
                     output.generated_text = json.loads(
                         body)["text"][0][len(request_func_input.prompt):]
@@ -192,7 +192,8 @@ async def async_request_deepspeed_mii(
         output = RequestFuncOutput()
         output.prompt_len = request_func_input.prompt_len
 
-        # DeepSpeed-MII doesn't support streaming as of Jan 28 2024, will use 0 as placeholder.
+        # DeepSpeed-MII doesn't support streaming as of Jan 28 2024,
+        # will use 0 as placeholder.
         # https://github.com/microsoft/DeepSpeed-MII/pull/311
         output.ttft = 0
 
@@ -344,7 +345,8 @@ async def async_request_openai_chat_completions(
     return output
 
 
-# Since vllm must support Python 3.8, we can't use str.removeprefix(prefix) introduced in Python 3.9
+# Since vllm must support Python 3.8, we can't use str.removeprefix(prefix)
+# introduced in Python 3.9
 def remove_prefix(text: str, prefix: str) -> str:
     if text.startswith(prefix):
         return text[len(prefix):]