elfcmp: fix self-comparison error with GCC 6

Noticed with Fedora 24 Alpha, gcc (GCC) 6.0.0 20160406
(Red Hat 6.0.0-0.20).

elfcmp.c: In function ‘main’:
elfcmp.c:364:199: error: self-comparison always evaluates
to false [-Werror=tautological-compare]
        if (unlikely (name1 == NULL || name2 == NULL

Signed-off-by: David Abdurachmanov <davidlt@cern.ch>
2 files changed