Fix tools/run-llprof.sh to work with newer perf.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/641973002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24478 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

tools/run-llprof.sh

@@ -66,4 +66,4 @@ if [ "$ACTUAL_KERNEL_MAP_RESTRICTION" -ne "0" ] ; then
 fi
 
 echo "Running benchmark..."
-perf record -R -e cycles -c $SAMPLE_EVERY_N_CYCLES -f -i $@ --ll-prof
+perf record -R -e cycles -c $SAMPLE_EVERY_N_CYCLES -i $@ --ll-prof