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mullvad-vpn-daemon/mullvad-vpn-daemon.pre-upgrade

@@ -1,9 +1,9 @@
 #!/bin/sh
 set -eu
 
-# Are we running systemd?
+# Stop the daemon gracefully, and set up firewall rules to prevent network
+# leaks during upgrade.
 if which systemctl >/dev/null 2>&1 && systemctl is-system-running | grep -vq offline >/dev/null 2>&1; then
-    # Is `mullvad-daemon.service` running?
     if systemctl status mullvad-daemon >/dev/null 2>&1; then
         mullvad-setup prepare-restart || true
         systemctl stop mullvad-daemon.service
@@ -14,5 +14,5 @@ if which systemctl >/dev/null 2>&1 && systemctl is-system-running | grep -vq off
     fi
 fi
 
-# Since we are upgrading mullvad-daemon, it will probably have current IP baked into itself.
+# Clear the cached API IP address.
 rm -f /var/cache/mullvad-vpn/api-ip-address.txt