Small change in flowchart for coordinate calculations, Appendix VI. Extended mechanism for distortion corrections

[Stein Haugan]

99% of readers(*) won't care, but I recently wasted at least half an hour while deciphering Bill Thompson's routine implementing tabulated coordinates b/c of an oversight in this flowchart (the irregular use of CRVALia). The LaTeX source is here (link will let you edit, but don't without consulting with me):

*) Me and everyone writing fits files with tabulated coordinates