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src/core/ngx_connection.c

diff --git a/src/core/ngx_connection.c b/src/core/ngx_connection.c
index 362a70e..9d22ac6 100644
--- a/src/core/ngx_connection.c
+++ b/src/core/ngx_connection.c
@@ -419,6 +419,9 @@
 #endif
 
         if (ls[i].listen) {
+
+            /* change backlog via listen() */
+
             if (listen(ls[i].fd, ls[i].backlog) == -1) {
                 ngx_log_error(NGX_LOG_ALERT, cycle->log, ngx_socket_errno,
                               "listen() to %V, backlog %d failed, ignored",