tor-hs: tor-hs.init handle_hs_ports_conf split ports

Using substring instead of awk.
It changes behaviour when only one port is specified.
Previously:
value="80" => public="80" local=""
Now:
value="80" => public="80" local="80"

It simplifies configuration of one-to-one ports.

Signed-off-by: Sergey Ponomarev <stokito@gmail.com>

net/tor-hs/files/tor-hs.init

@@ -43,8 +43,8 @@ handle_hs_ports_conf() {
 	local value="$1"
 	local ipv4="$2"
 
-	public_port=$(echo "$value"|awk -F';' '{print $1}')
-	local_port=$(echo "$value"|awk -F';' '{print $2}')
+	public_port="${value#*;}"
+	local_port="${value%;*}"
 	echo "HiddenServicePort $public_port $ipv4:$local_port">>$TORRC_FILE
 }