Correct OpenBSD profiling test

The test should be looking for gcrt0.o not crt0.o.  Clang was already printing
"gcrt0", but the test was looking for "{{.*}}crt0.o", and the .* regexp
consumed "g".

Patch by Brad Smith.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171815 91177308-0d34-0410-b5e6-96231b3b80d8