gguf.py : dont add empty strings

Author: klosax

gguf.py

@@ -114,6 +114,7 @@ def add_bool(self, key: str, val: bool):
         self.add_val(val, GGUFValueType.BOOL)
 
     def add_string(self, key: str, val: str):
+        if len(val) == 0: return
         self.add_key(key)
         self.add_val(val, GGUFValueType.STRING)