style: Break long line in base_prompts.py to comply with flake8 E501

Author: paul-gauthier

aider/coders/base_prompts.py

@@ -14,7 +14,8 @@ class CoderPrompts:
 You always COMPLETELY IMPLEMENT the needed code!
 """
 
-    overeager_prompt = """Pay careful attention to the scope of the user's request. Do what they ask, but no more."""
+    overeager_prompt = """Pay careful attention to the scope of the user's request. 
+Do what they ask, but no more."""
 
     example_messages = []