Update ramalama/chat.py

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: rhatdan

ramalama/chat.py

@@ -151,7 +151,7 @@ def _req(self):
         return None
 
     def kills(self):
-        if hasattr(self.args, "pid2kill") and self.args.pid2kill:
+        if getattr(self.args, "pid2kill", None):
             os.kill(self.args.pid2kill, signal.SIGINT)
             os.kill(self.args.pid2kill, signal.SIGTERM)
             os.kill(self.args.pid2kill, signal.SIGKILL)