2efe776a introduces rpath checks with the commit message:

> Remove all rpath entries which do not point to a location below /lib or
> /usr/lib and which do not begin with '$ORIGIN'.

However the implementation failed to support rpath entries with only the
'$ORIGIN' token and no trailing slash, so allow these as well.

Signed-off-by: Yorkie Liu <yazhong.liu@rokid.com>
[reword commit message]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>