Use-after-free Error , [gcc12 couldnt build]

[usta]

ReadStat/src/sas/readstat_sas7bdat_read.c

Line 706 in f8731f8

free(variable);

In line 706 variable freed but tried to reach freed variable at line 712 with :

                snprintf(ctx->error_buf, sizeof(ctx->error_buf),
                        "ReadStat: Error converting variable #%d info to specified encoding: %s %s (%s)",
                        i, variable->name, variable->format, variable->label);

This caused compile build problem on gcc12

[usta]

@evanmiller ^^