Add --nooutput or similar flag for binaries

[thethomaseffect]

I'm using makeself in a situation where I'd only like warnings and errors printed to console like -q when executing the outputted binary and not the

Verifying archive integrity... All good.
Uncompressing *

text currently present. This would allow piping the output of binaries to other commands/text files the same as if the startup_script has been run by itself. It would also imply the --noprogress flag. Is this something others would be interested in?

[thecodesmith]

I am also interested! This would help a workaround in my automated tests.

[megastep]

Sounds like a good idea.

[megastep]

Actually we already have a --quiet flag for archives. Is it not doing this?

[thecodesmith]

@megastep Thanks for the pointer! I have confirmed that it works for my scenarios.