Add comment, no functional change.
#include "httpd.h"
#include "util_filter.h"
+/* Read and discard all output from the brigade. Note that with the
+ * CGI bucket, the brigade will become empty once the script's stdout
+ * is closed (or on error/timeout), but the stderr output may not have
+ * been entirely captured at this point. */
static void discard_script_output(apr_bucket_brigade *bb)
{
apr_bucket *e;
