Don't fail if open(exec_bin) fails
Don't fail if open(exec_bin) fails

riusksk/riufuzz,google/honggfuzz,riusksk/riufuzz,riusksk/riufuzz,riusksk/riufuzz,google/honggfuzz,riusksk/riufuzz,riusksk/riufuzz,riusksk/riufuzz,anestisb/honggfuzz,google/honggfuzz