Tweak comments

Author: rwightman

src/open_clip/factory.py

@@ -29,9 +29,9 @@
 try:
     import _codecs
     import numpy as np
-    # add safe globals, known to be needed for metaclip weights
+    # add safe globals that are known to be needed for metaclip weights loading in weights_only=True mode
     torch.serialization.add_safe_globals([
-        _codecs.encode,  # now in pytorch main but some pytorch versions w/ weights_only flag don't have it
+        _codecs.encode,  # this one not needed for PyTorch >= 2.5.0
         np.core.multiarray.scalar,
         np.dtype,
         np.dtypes.Float64DType,