bugfix: prevent crash if feedback string contains control sequences
bugfix: prevent crash if feedback string contains control sequences

DeadDork/vimprobable2,desyncr/vimprobable,DeadDork/vimprobable2,ThomasAdam/vimprobable,fanglingsu/vimprobable,ThomasAdam/vimprobable,DeadDork/vimprobable2,DeadDork/vimprobable2,desyncr/vimprobable,hut/vimprobable,hut/vimprobable,fanglingsu/vimprobable,ThomasAdam/vimprobable,fanglingsu/vimprobable,desyncr/vimprobable,hut/vimprobable,desyncr/vimprobable