t / t3901 / 8859-1.txton commit rebase -i: demonstrate bugs with fixup!/squash! commit messages (d5bc6f2)
   1: to be sourced in t3901 -- this is latin-1
   2GIT_AUTHOR_NAME="Áéí óú" &&
   3GIT_COMMITTER_NAME=$GIT_AUTHOR_NAME &&
   4export GIT_AUTHOR_NAME GIT_COMMITTER_NAME