quoted values in my.cnf are not de-quoted

We recently began using the mariadb client library to compile Perl DBD::mysql. It works well except for that we noticed that users with ~/.my.cnf files that quoted their respective values are no longer able to log in without specifying the password directly.

I looked in libmariadb/default.c, and there doesn’t appear to be anything that handles quoting: the quotes themselves or backslash-escaped quotes within a quoted value.