bug#24534: tests/fmbtest: avoid false-failure due to reliance on MB-correct sed

[Jim Meyering]

On Sat, Sep 24, 2016 at 7:19 PM, Jim Meyering <j...@meyering.net> wrote:
> Another test-portability fix:

Pushed: http://git.sv.gnu.org/cgit/grep.git/commit/?id=e27724dafd306