bpf: close the file descriptor after probe inside getHostCPUNameForBPF

Signed-off-by: Yonghong Song <yhs@fb.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@311567 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed