io.encodings.detect: fill in USING: list for tests
io.encodings.detect: fill in USING: list for tests

erg/factor,ceninan/factor,ceninan/factor,erg/factor,erg/factor,mcandre/factor,erg/factor,mcandre/factor,ceninan/factor,mcandre/factor,erg/factor,mcandre/factor,erg/factor,erg/factor,ceninan/factor,mcandre/factor,kingcons/factor,mcandre/factor,mcandre/factor,kingcons/factor,kingcons/factor,kingcons/factor