F-Secure detects malware in mob v5.1.0 bin on Mac OS

[jtklahti]

I'm using mob on Mac M1. I've got F-Secure running and it detected "Program.APPL/AVF.Agent.biwgu" malware in mob v5.1.0 bin. After some fiddling around, same finding was made in mob_v5.1.0_darwin_universal.tar.gz, which of course contains that binary (downloaded by Brew).

F-Secure does not whine about Mob 5.0.1 tar.gz .

I just commented on #357 last week, but I guess a separate issue is better.