Log Tor's bootstrapping status to syslog.

config/chroot_local-includes/usr/local/sbin/restart-tor

@@ -8,6 +8,10 @@ set -e
 # Import tor_bootstrap_progress()
 . /usr/local/lib/tails-shell-library/tor.sh
 
+# Import log()
+. /usr/local/lib/tails-shell-library/log.sh
+_LOG_TAG="$(basename $0)"
+
 # The Tor log is removed to ensure `tor_bootstrap_progress`'s output will be
 # accurate.
 clear_tor_log() {
@@ -30,12 +34,14 @@ last_bootstrap_change=$(date +%s)
 maybe_restart_tor() {
     local new_bootstrap_progress=$(tor_bootstrap_progress)
     if [ $new_bootstrap_progress -eq 100 ]; then
+        log "Tor has successfully bootstrapped."
         return 0
     elif [ $new_bootstrap_progress -gt $bootstrap_progress ]; then
         bootstrap_progress=$new_bootstrap_progress
         last_bootstrap_change=$(date +%s)
         return 1
     elif [ $(expr $(date +%s) - $last_bootstrap_change) -ge 20 ]; then
+        log "Tor seems to have stalled while bootstrapping. Restarting Tor."
         clear_tor_log
         service tor restart
         bootstrap_progress=0