lavfi/drawtext: hide first font load warning when fontconfig is present

libavfilter/vf_drawtext.c

@@ -372,8 +372,10 @@ static int load_font_file(AVFilterContext *ctx, const char *path, int index)
 
     err = FT_New_Face(s->library, path, index, &s->face);
     if (err) {
+#if !CONFIG_LIBFONTCONFIG
         av_log(ctx, AV_LOG_ERROR, "Could not load font \"%s\": %s\n",
                s->fontfile, FT_ERRMSG(err));
+#endif
         return AVERROR(EINVAL);
     }
     return 0;