p_exptype has extra spaces in nirspec wavelengthrange file

[JeffValenti]

jwst_nirspec_wavelengthrange_0004.asdf has extra spaces in the value of meta.exposure.p_exptype. Simple demonstration:

import asdf
import crds
keys = {'INSTRUME': 'NIRSPEC', 'EXP_TYPE': 'NRS_BRIGHTOBJ', 'DATE-OBS': '2021-03-30', 'TIME-OBS': '00:00:00'}
refs = crds.getreferences(keys, reftypes=['wavelengthrange'])
content = asdf.open(refs['wavelengthrange'])
p_exptype = content['meta']['exposure']['p_exptype']
print(p_exptype)

yields

NRS_TACQ|NRS_TASLIT|NRS_TACONFIRM|    NRS_CONFIRM|NRS_FIXEDSLIT|NRS_IFU|NRS_MSASPEC|NRS_IMAGE|NRS_FOCUS|    NRS_MIMF|NRS_BOTA|NRS_LAMP|NRS_BRIGHTOBJ|

Note the four extra spaces in front of NRS_CONFIRM and NRS_MIMF, both of which occur at the start of a continuation line in wave_range2asdf.py.