rb_syserr_fail_path_in 2197 error.c            rb_syserr_fail_path_in(func_name, n, path);
rb_syserr_fail_path_in 2683 file.c             rb_syserr_fail_path_in(func, e, str);
rb_syserr_fail_path_in  993 internal.h     # define rb_syserr_fail_path(err, path) rb_syserr_fail_path_in(RUBY_FUNCTION_NAME_STRING, (err), (path))