message: fix test_ngtf failure - typo
diff: @@ -27,10 +27,10 @@ class TestSetBackend(NgraphTest):
  def test_set_backend(self):
  # store env variables
  - # when testing on backends like GPU the tests are run with NGRPAH_TF_BACKEND
  + # when testing on backends like GPU the tests are run with NGRAPH_TF_BACKEND
  # by storing and restoring the env_variables we run the tests independent of the backend set
  # currently we store and restore only the NGRAPH_TF_BACKEND
  - env_var_map = self.store_env_variables(["NGRPAH_TF_BACKEND"])
  + env_var_map = self.store_env_variables(["NGRAPH_TF_BACKEND"])
  # test
  ngraph_bridge.enable()
  