added debugging line to doctest to find cwd

Author: tclose

pydra/tasks/dcm2niix/utils.py

@@ -321,6 +321,8 @@ class Dcm2Niix(ShellCommandTask):
     >>> task = Dcm2Niix()
     >>> task.inputs.in_dir = "tests/data/test_dicoms"
     >>> task.inputs.out_dir = "tests/data/output"
+    >>> import os
+    >>> print(os.getcwd())
     >>> task.cmdline
     'dcm2niix -o tests/data/output -f out_file tests/data/test_dicoms'
     """