Logging: do not print instruction differences during code relocation detection

[viktormalik]

When trying to find code relocations, we compare a lot of instructions and most of these comparisons are expected to fail. Therefore, the logger should not report such failures (at least not with the -d switch).

Reproducer: deferred_free_range function between linux-4.18.0-80.el8 and linux-4.18.0-147.el8.