[PATCH] D38866: [llvm-isel-fuzzer] Use "--" as separator rather than '='.

[Justin Bogner via llvm-commits]

Matt Morehouse via Phabricator <reviews at reviews.llvm.org> writes:
> I tested this manually and it seems to work, but doing `ninja
> check-llvm` doesn't seem to run these test cases for me.  Maybe my
> config uses `rpath`?

Sorry, there was a bug in r315599 and the tests weren't running in many
places at all. I've fixed it in r315646.