Mute Shellcheck warning about PRETTY_DEBUG

dotfiles/imapdomo/utils/imapdomo

     CfgDir="$HOME/.imapdomo"
     LogDir="$HOME/.local/share/imapdomo/logs"
     Debug=false
+    #shellcheck disable=SC2034
     while true; do case $1 in
         -c) CdTo="$2"; shift 2 || usage ;;
         -d) Debug=true; PRETTY_DEBUG=true; shift ;;