fix: doctest line wrapping

Author: satra

nipype/interfaces/base.py

@@ -1422,7 +1422,7 @@ class must be instantiated with a command argument
     >>> cli.cmdline
     'ls -al'
 
-    >>> cli.inputs.trait_get()
+    >>> cli.inputs.trait_get() # doctest: +NORMALIZE_WHITESPACE
     {'ignore_exception': False, 'terminal_output': 'stream',
      'environ': {'DISPLAY': ':1'}, 'args': '-al'}