add custom delimiter option

[luckman212]

This is a verbatim copy of my old PR from main (abandoned?) fork - see zmwangx#17

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One problem that I had was the delimiter of a single space was making it hard to integrate with some other logging tools that I also use. I wanted to use \t tab instead, but I went ahead and made this PR that adds a -d / --delim flag to allow any custom delimiter that might be desired.

Examples

ets --delim ' - '
ets -d '\t\t'
ets -d ':  '

One little neat trick you can do with this is create a delimiter that causes the terminal to beep when new lines are logged, e.g.

$ ping 1.1.1.1 | ets -d '\t\x07'

Hope this patch is ok, but let me know 👍

[gdubicki]

Thanks again! I’ll make a new release tomorrow.

[gdubicki]

I need a bit more time for the release - updating the man page is a nightmare an „interesting” time-travel-like experience… 🦕😅