t3901: move supporting files into t/t3901/

2017-05-10T04:32:51Z

The current convention is to either generate files on the fly in tests, or to use supporting files taken from a t/tNNNN/ directory (where NNNN matches the test's number, or the number of the test from which we borrow supporting files). The test t3901-i18n-patch.sh was obviously introduced before that convention was in full swing, hence its supporting files still lived in t/t3901-8859-1.txt and t/t3901-utf8.txt, respectively. Let's adjust to the current convention. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano

git/t/t3901, branch next

t3901: move supporting files into t/t3901/