chore(qbittorrent): use explicit route-state file truncation

Agent-Logs-Url: https://github.com/alexbelgium/hassio-addons/sessions/a71578b6-156a-4604-a66d-695af500d883

Co-authored-by: alexbelgium <44178713+alexbelgium@users.noreply.github.com>

qbittorrent/rootfs/usr/local/sbin/vpn

@@ -439,7 +439,7 @@ _wireguard_up() {
     fi
 
     _cmd "ip link set ${config["Interface"]} up" || return 1
-    : > "${config["EndpointRoutesFile"]}"
+    > "${config["EndpointRoutesFile"]}"
     _endpoint_route_add "${config["EndpointIP"]}" || return 1
 
     # Add routing rules for VPN interface and DNS servers
@@ -599,7 +599,7 @@ _openvpn_up() {
     echo "${config["MySelf"]} openvpn postdown" >> ${config["PostDownScript"]}
     chmod 755 ${config["PostDownScript"]}
 
-    : > "${config["EndpointRoutesFile"]}"
+    > "${config["EndpointRoutesFile"]}"
     while IFS= read -r endpoint_ip || [ -n "${endpoint_ip}" ]; do
         [ -z "${endpoint_ip}" ] && continue
         _endpoint_route_add "${endpoint_ip}" || return 1