build-macos-libs.sh: move to posix shell

This removes the remaining bashisms and changes the shebang.

Also remove command chaining in subshells as this allows for comments
to go where they belong and shellcheck directives to be more specific.

Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
This commit is contained in:
Ralph Sennhauser 2024-08-31 11:17:51 +02:00 committed by Stan
parent 79127ec59d
commit f87dfebc71

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