[awphi]

Changes

• Escapes the posix style variable interpolation that is parsed by /bin/sh from the outer login shell invocation which otherwise attempts to parse it. This was the cause of the failure for non-compliant shells like fish i.e.

❯ ssh pi5-rod -- '/bin/sh -c "exec ${SHELL:-/bin/sh} -lc \"echo foo\""' 
fish: ${ is not a valid variable in fish.
/bin/sh -c "exec ${SHELL:-/bin/sh} -lc \"echo foo\""

but now, with the escaped $:

❯ ssh pi5-rod -- '/bin/sh -c "exec \${SHELL:-/bin/sh} -lc \"echo foo\""'
foo

Checklist

• 🤖 This change is covered by tests as required.
• 🤹 All required manual testing has been performed.
• 📖 All documentation updates are complete.

[muchzill4]

❤️