Minor fix, only ISO_IR 13 is a defined term, not ISO_IR 14.
Minor fix, only ISO_IR 13 is a defined term, not ISO_IR 14.

DICOM uses "ISO_IR 13" as the defined term for JIS X 0201, which
includes ISO_IR 14 (romaji) in G0 and ISO_IR 13 (katakana) in G1.
After this change, neither "ISO_IR 14" or "ISO 2022 IR 14" are
recognized as defined terms.

dgobbi/vtk-dicom,dgobbi/vtk-dicom,dgobbi/vtk-dicom