tlog-rec fails in error when started from a confined user

Issue

• When trying to execute tlog-rec to record some commands and the user is confined (e.g. to staff_u), the following errors are seen but no AVCs are recorded and the command doesn't execute:

  [staff@vm-rhel8 ~]$ id -Z
  staff_u:staff_r:staff_t:s0-s0:c0.c1023
  
  [staff@vm-rhel8 ~]$ tlog-rec -o log.out echo hello
  Locale charset is ANSI_X3.4-1968 (ASCII)
  Assuming locale environment is lost and charset is UTF-8
  Failed adding a utmp record
  Success
  Failed removing utmp record
  Failed setting up the I/O tap
  

  Here above we can see error messages and no "hello" being displayed, which indicates the command didn't execute at all.