`local` is a bash-ism so it's best avoided in this context, and the command is running in its own shell anyway so the variables can't pollute anything else.
The variables can already exist in the environment. One of them is tested by a statement that is reachable without that variable being initialized in that script.
A fix that keeps the script POSIX would be to initialize the variable.
The variables can already exist in the environment. One of them is tested by a statement that is reachable without that variable being initialized in that script.
A fix that keeps the script POSIX would be to initialize the variable.