bug#24524: tests: avoid erroneous failure of pcre-jitstack test

[Jim Meyering]

On Fri, Sep 23, 2016 at 11:05 PM, Jim Meyering <j...@meyering.net> wrote:
> FYI, the pcre-jitstack test was failing when it should not have.
> This fixes it:

Pushed: http://git.sv.gnu.org/cgit/grep.git/commit/?id=0b7fae5850db49a