Add code back in to fix tlrc issue

[cgc]

Some images are interpreted as tlrc-space by AFNI (whether they are or not), but this script assumes inputs will be orig-space. We need to force input headers to orig-space to avoid this issue. The script below accomplishes this.

'''
Usage:
python fix-headers.py input.nii.gz output.nii.gz
'''
import nibabel as nib
import sys

image = nib.load(sys.argv[1])

for key in ['qform_code', 'sform_code']:
    if image.header[key] == 2:
        image.header[key] = 1

nib.save(image, sys.argv[2])