OOM Score adjusting logic in kubelet should handle containers that exit quickly.

Signed-off-by: Vishnu kannan <vishnuk@google.com>

pkg/util/procfs/procfs.go

@@ -49,7 +49,7 @@ func (pfs *ProcFS) GetFullContainerName(pid int) (string, error) {
 	filePath := path.Join("/proc", strconv.Itoa(pid), "cgroup")
 	content, err := ioutil.ReadFile(filePath)
 	if err != nil {
-		if e, ok := err.(*os.SyscallError); ok && os.IsNotExist(e) {
+		if os.IsNotExist(err) {
 			return "", os.ErrNotExist
 		}
 		return "", err