[fix] ./manage script, prompt the unknown command
@@ -525,7 +525,7 @@ main() {
*)
_type="$(type -t "$cmd")"
if [ "$_type" != 'function' ]; then
err_msg "unknown command $1 / use --help"
err_msg "unknown command: $cmd / use --help"
return 42
else
"$cmd" "$@"
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