Fix tag2_name_cpy[] size
    
    The test crashes in Fedora 39 with gcc-13.1.1-2.fc39 and
    glibc-2.37.9000-10.fc39.x86_64:
    
    |    + ./test
    |    *** buffer overflow detected ***: terminated
    |    0a1,14
    |    > 043436006cb582879b8d66503e755a22bcd8b13e tag-1-2
    |    > d882aa1b41767801307cf18b08c3653ee22eca35 tag-11-1
    |    > 11344b06b32f18534d921cb22a001db21058e7af tag-10-1
    |    > 6fecf2e24af75b97ae857d6f8b58ee54a74b7d2d tag-9-1
    |    > fa9dd254964d602202e09e43017f67d484903618 tag-5-1
    |    > f617549126a44e6cceea5384623dede4cd76beb5 tag-8-3
    |    > 5334bc27d2312b7b512733f625ade86bd19f7edd tag-8-2
    |    > e5cc783757f61e7e7179394a989b0bf6bd8b771d tag-8-1
    |    > 1097c7de63a35207f32c3232a1f4253ad0ec2e4e tag-8-0
    |    > 335cae5db0ac482dfd3e8ec972831dc0b74ca030 tag-7-1
    |    > 9b0975c3aaeea59ebdcf69ae23d331c7c97cd97a tag-6-1
    |    > 379b113d3447c00c499b2a048cda13878c10e79a tag-3-1
    |    > 5c48f70428673549517763d984ab06019791c8bf tag-4-1
    |    > 13841e1b08e7c90c651ce8bf9acb0312e14841b8 tag-1-1
    |    fail.
    |    error: Bad exit status from /var/tmp/rpm-tmp.Zd3mzx (%build)
    
    The reason is a typo in tag2_name_cpy[] definition. It has a wrong size:
    
    	/* copy tag names */
    	char tag1_name_cpy[strlen(tag1_name) + 1];
    	char tag2_name_cpy[strlen(tag1_name) + 1];
    	strcpy(tag1_name_cpy, tag1_name);
        ->  strcpy(tag2_name_cpy, tag2_name);
    
        tag2_name_cpy is too short to hold tag2_name:
    
        (gdb) p tag1_name
        $1 = 0x52d700 "tag-9-1"
        (gdb) p tag2_name
        $2 = 0x538fe0 "tag-10-1"
    
    This patch fixes the typo. Then the test passes.
    
    https://bugzilla.redhat.com/show_bug.cgi?id=2208579