shadowsocks-libev: setting mode with default value tcp_only

This is the default value taken by ss-server and ss-redir.  After this
change ss_rules section can still use those ss-redir instances who do
not have mode explicitly specified.

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

net/shadowsocks-libev/Makefile

@@ -10,11 +10,11 @@ include $(TOPDIR)/rules.mk
 # Checklist when bumping versions
 #
 # - update cipher list by checking src/crypto.c:crypto_init()
-# - check if ss-rules has been upstreamed
+# - check if default mode has changed from being tcp_only
 #
 PKG_NAME:=shadowsocks-libev
 PKG_VERSION:=3.0.8
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/shadowsocks/shadowsocks-libev/releases/download/v$(PKG_VERSION)

net/shadowsocks-libev/files/shadowsocks-libev.init

@@ -274,7 +274,7 @@ validate_common_options_() {
 		'ipv6_first:bool:0' \
 		'reuse_port:bool:0' \
 		'verbose:bool:0' \
-		'mode:or("tcp_only", "udp_only", "tcp_and_udp")' \
+		'mode:or("tcp_only", "udp_only", "tcp_and_udp"):tcp_only' \
 		'mtu:uinteger' \
 		'timeout:uinteger' \
 		'user:string'