better error log

Signed-off-by: Yi Zhang <[email protected]>

Author: yizhang-nv

tests/integration/defs/conftest.py

@@ -1828,7 +1828,7 @@ def skip_by_mpi_world_size(request):
             'skip_less_mpi_world_size').args[0]
         if expected_count > int(total_count):
             pytest.skip(
-                f'Total count {total_count} is less than {expected_count}')
+                f'Total world size {total_count} is less than {expected_count}')
 
 
 @pytest.fixture(autouse=True)