Re: [PATCH v4 0/4] Better support for customising context lines in --patch commands

> Changes since v3:
>
>  * Update commit descriptions
>  * Read struct properties directly instead of assigning to variables first
>  * Simplify config setting / error checking
>  * Remove redundant tests in later commit as they were replaced with better
>    test(s)
>  * Change tests to use single quotes (this messes with the grep so was
>    unable to explicitly test single quotes in the error messages, so decided
>    to use regex . instead, which is what some other tests that have this
>    problem seem to use as well)