expand: fix %d -> %s format string for char * line, check truncation or error
expand: fix %d -> %s format string for char * line, check truncation or error

k0gaMSX/kcc,k0gaMSX/scc,k0gaMSX/scc,k0gaMSX/kcc,8l/scc,k0gaMSX/scc,8l/scc,8l/scc