[fix] use sys.exit() instead than exit()

model/llava/model/utils.py

@@ -1,3 +1,5 @@
+import sys
+
 from transformers import AutoConfig
 
 
@@ -21,4 +23,4 @@ def auto_upgrade(config):
             print("Checkpoint upgraded.")
         else:
             print("Checkpoint upgrade aborted.")
-            exit(1)
+            sys.exit(1)