Changelog prepared by upstream project * osport.h: replace SUSv3-specific functions by POSIX variants [Fabrice Fontaine] * avp: Error Code field in Result Code AVP is optional [Pau Espin Pedrol] * network_thread: Early continue in loop to remove huge indented block [Pau Espin Pedrol] * network_thread: Simplify while loop using for loop [Pau Espin Pedrol] * network: connect_pppol2tp: early return to avoid huge indentation block [Pau Espin Pedrol] * xl2tpd: start_pppd: Fix truncation of last character [Pau Espin Pedrol] * handle_packet: Remove unneded else clause when handling payload [Pau Espin Pedrol] * control: Split control message handling into its own function [Pau Espin Pedrol] * handle_packet: Rearrange code flow to simplify it [Pau Espin Pedrol] * avp: Early failure if no handler to remove indent block [Pau Espin Pedrol] * xl2tpd: Mark internal symbols as static [Pau Espin Pedrol] * Fix indentation and whitespace in code block [Pau Espin Pedrol] * xl2tpd: Remove unused variable [Pau Espin Pedrol] * network: Add missing close(kernel_fd) on init network failure [Pau Espin Pedrol] * network: Add missing close(server_fd) on init network failure [Pau Espin Pedrol] * Add 'cap backoff' option, limiting exponential backoff retries will be delayed by exponentially longer time, unless that time is capped by configuration. [Bart Trojanowski] * Add program to show status icon in system tray. [Github user: username34] * Add info on building and installing xl2tpd [Samir Hussain] * Update formatting of README.md [Samir Hussain] * Rename README.xl2tpd to README.md [Samir Hussain] * Update Debian changelog [Samir Hussain] Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>lilik-openwrt-22.03