My bad, I just fixed it. The comments were wrong in my latest change.
Just redownload from original post link, make sure to refresh cache. In your shader file the comments should look like this (new version):
// The small number compensates for possible floating point rounding errors
// when scaling by exact integer mutiples, e.g. 540/1080=1.99999994
Not like this (old version):
#The small number compensates for possible floating point rounding errors
#when scaling by exact integer mutiples, e.g. 540/1080=1.99999994
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