fix downloading success check bug (#1388)

* fix downloading success check bug

* fix downloading success check bug

* simplify fix

Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>

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Co-authored-by: Adam J. Stewart <ajstewart426@gmail.com>

experiments/ssl4eo/download_ssl4eo.py

@@ -515,7 +515,7 @@ if __name__ == "__main__":
         # add to existing checked locations
         with open(ext_path, "a") as f:
             writer = csv.writer(f)
-            if patches is not None:
+            if patches:
                 success = 1
             else:
                 success = 0