[Misc] Print stack trace using logger.exception (#9461)

vllm/entrypoints/openai/tool_parsers/hermes_tool_parser.py

@@ -103,9 +103,9 @@ class Hermes2ProToolParser(ToolParser):
                     tool_calls=tool_calls,
                     content=content if content else None)
 
-            except Exception as e:
-                logger.error("Error in extracting tool call from response %s",
-                             e)
+            except Exception:
+                logger.exception(
+                    "Error in extracting tool call from response.")
                 return ExtractedToolCallInformation(tools_called=False,
                                                     tool_calls=[],
                                                     content=model_output)
@@ -333,6 +333,6 @@ class Hermes2ProToolParser(ToolParser):
 
             return delta
 
-        except Exception as e:
-            logger.error("Error trying to handle streaming tool call: %s", e)
+        except Exception:
+            logger.exception("Error trying to handle streaming tool call.")
             return None  # do not stream a delta. skip this token ID.