additional information in the default script template header

[meleu]

request

I suggest to put in the default script template header an information saying that the code in that file is going to be put inside a function.

Something like the second line below:

echo "# this file is located in 'src/upload_command.sh'"
echo "# the code here will be placed **inside a function**"

I'm not really suggesting this exact text, but the message I'd like to be conveyed.

reasoning

I'm used to put all bash code inside functions. Even for simple scripts, I create a main function and then call it with main "$@".

The very first time I was trying bashly, I've coded my src/root_command.sh as I would do with my usual way of coding, and it generated this:

cli_upload_command() {
  # src/upload_command.sh
  hello() {
    echo "hello world"
  }
  hello
}

That is actually valid and really works, but the "function inside a function" situation wasn't what I was expecting.

[DannyBen]

Moved to #592