message: Add a warning; remove unneeded check
diff: set -eu
  -BASEDIR=$(readlink -f $(dirname $0))
  -CHAINSPEC=$(mktemp -t chainspec_XXXXXXXX --suffix .toml)
  -
  ARGS="$@"
  # If no nodes defined, stop all.
  NODES="${ARGS:-1 2 3 4 5}"
  -for i in $NODES; do
  +# print the warning if node 1 is one of the selected nodes to be stopped
  case "$NODES" in
  - *"$i"*) systemctl --user stop node-$i
  + *"1"*) echo "NOTE: Stopping node 1 will also stop other nodes started with run-dev.sh"
  esac
  +
  +for i in $NODES; do
  + systemctl --user stop node-$i
  done;
  rm /tmp/chainspec_*
  