}
-void
-malware_show_supported(FILE * f)
+gstring *
+malware_show_supported(gstring * g)
{
-fprintf(f, "Malware:");
-for (struct scan * sc = m_scans; sc->scancode != (scanner_t)-1; sc++) fprintf(f, " %s", sc->name);
-fprintf(f, "\n");
+g = string_cat(g, US"Malware:");
+for (struct scan * sc = m_scans; sc->scancode != (scanner_t)-1; sc++)
+ g = string_fmt_append(g, " %s", sc->name);
+return string_cat(g, US"\n");
}