selftest/package: Correct format arguments in test_gdb_hardlink_debug

(From OE-Core rev: 7c2c9b876334cc7357f818c3b3744fc97987e38f)

Signed-off-by: Ola x Nilsson <olani@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/cases/package.py

@@ -137,7 +137,7 @@ class PackageTests(OESelftestTestCase):
                 elif "Breakpoint 1, main () at hello.c:4" in l:
                     return True
 
-            self.logger.error("GDB result:\n%s: %s" % output)
+            self.logger.error("GDB result:\n%d: %s", status, output)
             return False
 
         with runqemu('core-image-minimal') as qemu: