Fix typo in IsLikelyNotMountPoint function comment: --bin -> --bind

Author: sungjunyoung

pkg/util/mount/mount_linux.go

@@ -226,7 +226,7 @@ func (mounter *Mounter) IsNotMountPoint(dir string) (bool, error) {
 // IsLikelyNotMountPoint determines if a directory is not a mountpoint.
 // It is fast but not necessarily ALWAYS correct. If the path is in fact
 // a bind mount from one part of a mount to another it will not be detected.
-// mkdir /tmp/a /tmp/b; mount --bin /tmp/a /tmp/b; IsLikelyNotMountPoint("/tmp/b")
+// mkdir /tmp/a /tmp/b; mount --bind /tmp/a /tmp/b; IsLikelyNotMountPoint("/tmp/b")
 // will return true. When in fact /tmp/b is a mount point. If this situation
 // if of interest to you, don't use this function...
 func (mounter *Mounter) IsLikelyNotMountPoint(file string) (bool, error) {