Apply suggestions from code review

Co-authored-by: Chris Markiewicz <effigies@gmail.com>

Author: oesteban

nipype/pipeline/plugins/base.py

@@ -199,10 +199,14 @@ def run(self, graph, config, updatehash=False):
 
         if errors:
             # If one or more nodes failed, re-rise first of them
-            if isinstance(errors[0], str):
-                raise RuntimeError(errors[0])
+            error, cause = errors[0], None
+            if isinstance(error, str):
+                error = RuntimeError(error)
 
-            raise errors[0]
+            if len(errors) > 1:
+                error, cause = RuntimeError(f"{len(errors)} raised. Re-raising first."), error
+
+            raise error from cause
 
     def _get_result(self, taskid):
         raise NotImplementedError

nipype/pipeline/plugins/tests/test_sgelike.py

@@ -29,7 +29,6 @@ def test_crashfile_creation(tmp_path):
     sgelike_plugin = SGELikeBatchManagerBase("")
     with pytest.raises(RuntimeError) as e:
         assert pipe.run(plugin=sgelike_plugin)
-        assert str(e.value) == "Workflow did not execute cleanly. Check log for details"
 
     crashfiles = list(tmp_path.glob("crash*crasher*.pklz")) + list(
         tmp_path.glob("crash*crasher*.txt")