errors: improve ERR_INVALID_OPT_VALUE message
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
I also thought of changing the message from always having the quotes (i.e. "42"
-> 42
) around value to make it easier to distinguish between different value types (i.e. string vs number), wdyt?