Feature request - invocation by argument list instead of shell command

[jstimpfle]

With an alternate syntax going through the shell could be avoided for the bench'ed command. The pre-split argument list could be embedded in the bench invocation's argument list. Two possible styles:

• bench foo -exec cmd arg1 ... ; bar baz
• bench foo bar baz -- cmd arg1 ...

[Gabriella439]

The main reason I don't do this is that it's very difficult to separate the command's flags from the bench command's flags, especially now that bench supports benchmarking multiple commands

[nh2]

It would be great to have that.

I have the feeling that my benchmarking of brotli is severely inflated by the sh startup cost.

Many other programs use -- as a separator of the command line arguments, or --args (that's what gdb does).

Even a read style invocation like bench --read-args '["brotli","--quality=4","myfile"]' might be acceptable.