fix write_keys() on string cards; add test

esheldon / fitsio

A python package for FITS input/output wrapping cfitsio

GNU General Public License v2.0

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Closed CraigLoomis closed 1 year ago

esheldon commented 1 year ago

Thanks Craig. I'm surprised this didn't cause anyone else problems.

CraigLoomis commented 1 year ago

Probably because sensible people do not update existing HDUs.