Start the signal thread, so we can Ctrl+C ola_recorder, also exit with a nonzero status if a file is invalid during verification
Start the signal thread, so we can Ctrl+C ola_recorder, also exit with a nonzero status if a file is invalid during verification

nightrune/ola,ld3300/ola,ld3300/ola,nightrune/ola,ld3300/ola,ld3300/ola,nightrune/ola,nightrune/ola,ld3300/ola,nightrune/ola,ld3300/ola,ld3300/ola,nightrune/ola,nightrune/ola