However, it looks like I missed a line of code or the sources have changed
since 2011. :-)

The current code for forground = yes does:

options.c:969
         if(!strcasecmp(arg, "yes")) {
             new_global_options.option.foreground=1;
             new_global_options.option.log_stderr=1;
         } else if(!strcasecmp(arg, "quiet")) {

so the patch needs to be updated to include:

             new_global_options.option.log_stderr=1;

Paul, can you do this for us for the next build?  There's not rush