The output format of the file(1) command have changed since (at least)
the version 5.14. We need to to take care of an extra space.
Signed-off-by: Jean-Marie Lemetayer <jeanmarie.lemetayer@gmail.com>
[yann.morin.1998@free.fr: do not right-shift trailing back-slashes]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>