Fix non-blocking sockets in net_accept()

ChangeLog

diff --git a/ChangeLog b/ChangeLog
index cb1be26..68c4371 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,7 @@
 Bugfix
    * Support escaping of commas in x509_string_to_names()
    * Fix compile error in ssl_pthread_server (found by Julian Ospald).
+   * Fix net_accept() regarding non-blocking sockets (found by Luca Pesce).
 
 Changes
    * Ciphersuites using SHA-256 or SHA-384 now require TLS 1.x (there is no