fix typo

Author: lanluo-nvidia

examples/apps/flux_demo.py

@@ -146,7 +146,7 @@ def forward_loop(mod):
         generator=torch.Generator("cuda").manual_seed(seed),
     ).images
     print(f"generated {len(image)} images")
-    image[0].save("/tmpforest.png")
+    image[0].save("/tmp/forest.png")
 
     torch.cuda.empty_cache()