Afni's OutlierCount interface error #1406
Description
In OutlierCountInputSpec:
'in_file' and 'automask' shouldn't be xor attributes
Source: AFNI 3dToutcount documentation example
3dToutcount -automask v1+orig | 1dplot -stdin
(PS: I also wonder why not use the terminal_output attribute of CommandLine to capture the stdout in this interface)