tst-rename.so: Fix printf of file name instead of descriptor

Signed-off-by: Or Cohen <orc@fewbytes.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Removed ether_sprintf (wrong format, not used)

ether_sprintf() used special format specifiers from BSD's printf(9).

http://www.unix.com/man-page/freebsd/9/printf/

Instead of re-implementing these specifiers in different ways and
because this method is not being used anywhere, it was completely
removed.

Signed-off-by: Or Cohen <orc@fewbytes.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Removed m_print (wrong format, not used)

m_print() used special format specifiers from BSD's printf(9).

http://www.unix.com/man-page/freebsd/9/printf/

Instead of re-implementing these specifiers in different ways and
because this method is not being used anywhere, it was completely
removed.

Signed-off-by: Or Cohen <orc@fewbytes.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Fix usage of non literal format print

Signed-off-by: Or Cohen <orc@fewbytes.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>