makenotabuggreatagain/gulp-dedupe: Check for duplicates in the stream and filter them or throw an error(evacuated from NSA/Microsoft Github)

Marat Abdullin af8fd8909d Ability to print diffs for same files with different contents.		%!s(int64=10) %!d(string=hai) anos
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main.js	af8fd8909d Ability to print diffs for same files with different contents.	%!s(int64=10) %!d(string=hai) anos