Merge pull request #5950 from LDOUBLEV/dygraph

fix rec output name error

tools/infer/utility.py

@@ -327,6 +327,10 @@ def get_output_tensors(args, mode, predictor):
             for output_name in output_names:
                 output_tensor = predictor.get_output_handle(output_name)
                 output_tensors.append(output_tensor)
+    else:
+        for output_name in output_names:
+            output_tensor = predictor.get_output_handle(output_name)
+            output_tensors.append(output_tensor)
     return output_tensors