FIX: report.rst terminal output

[mgxd]

Closes #3103

This should fix cases where terminal output (stdout / stderr) is given as a string, and each character is printed on a new line.

[codecov]

Codecov Report

Merging #3220 into master will decrease coverage by 0.84%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3220      +/-   ##
==========================================
- Coverage   64.97%   64.12%   -0.85%     
==========================================
  Files         301      299       -2     
  Lines       39836    39771      -65     
  Branches     5270     5264       -6     
==========================================
- Hits        25884    25505     -379     
- Misses      12890    13218     +328     
+ Partials     1062     1048      -14     

Flag	Coverage Δ
#unittests	64.12% <100.00%> (-0.85%)	⬇️

Impacted Files	Coverage Δ
nipype/utils/filemanip.py	72.47% <100.00%> (-0.48%)	⬇️
nipype/workflows/__init__.py	47.05% <0.00%> (-52.95%)	⬇️
nipype/utils/spm_docs.py	20.00% <0.00%> (-48.00%)	⬇️
nipype/interfaces/freesurfer/base.py	47.58% <0.00%> (-28.23%)	⬇️
nipype/utils/logger.py	56.92% <0.00%> (-27.70%)	⬇️
nipype/testing/fixtures.py	77.92% <0.00%> (-20.78%)	⬇️
nipype/interfaces/dcm2nii.py	49.30% <0.00%> (-15.82%)	⬇️
nipype/interfaces/matlab.py	65.00% <0.00%> (-12.00%)	⬇️
nipype/interfaces/spm/base.py	58.08% <0.00%> (-9.58%)	⬇️
nipype/pkg_info.py	75.00% <0.00%> (-6.25%)	⬇️
... and 12 more

---

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[oesteban]

Really necessary. Thanks

[tashrifbillah]

I'll have a look at it and let you know.

Thanks!

[tashrifbillah]

Where is this ensure_list() function defined?

[mgxd]

nipype/nipype/utils/filemanip.py

Lines 523 to 533 in 4c48a18

	def ensure_list(filename):
	"""Returns a list given either a string or a list
	"""
	if isinstance(filename, (str, bytes)):
	return [filename]
	elif isinstance(filename, list):
	return filename
	elif is_container(filename):
	return [x for x in filename]
	else:
	return None