Feature Request: Flag to ignore whitespace changes #921
Description
Currently whitespace changes are highlighted when diffing two text files (or when difft falls back to text files). Would it be possible to add a flag like --ignore-whitespace-changes that ignores all changes in whitespace, including adding or deleting empty lines? (Similar to the --ignore-space-change and --ignore-blank-lines flags from the normal diff tool.) This would allow to at least remove some irrelevant changes from the output, if the user so wishes.