Checkmk Werk 13884: Fix possible exception on download of agent output

ID: 13884 Title: Fix possible exception on download of agent output Component: Multisite Level: 1 Class: Bug fix Version: 2.2.0i1 If you tried to download an agent output via "Download agent output" in the service icons of the "Check_MK" service, an exception like "'utf-8' codec can't decode byte 0x84 in position 85084: invalid start byte" could occur.