[Bug jit/64721] SIBABRT becomes a SIGSEGV in jit testsuite

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64721

--- Comment #2 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #1)
> Currently we unconditionally install crash_handler as a signal_handler, and
                                       "crash_signal as a signal-handler"
this should have read.