The pattern prefixed with '/' matches files in the same directory,
but not ones in sub-directories.

Signed-off-by: Masahiro Yamada
Acked-by: Miguel Ojeda
Acked-by: Rob Herring
Acked-by: Andra Paraschiv
Acked-by: Greg Kroah-Hartman
Acked-by: Gabriel Krisman Bertazi