STYLE: Replace char with signed char as itk::Image argument in tests#5465

hjmjohnson merged 1 commit intoInsightSoftwareConsortium:mainInsightSoftwareConsortium/ITK:mainfrom

N-Dekker:Replace-Image-char-in-testsN-Dekker/ITK:Replace-Image-char-in-testsCopy head branch name to clipboard