Prevent freedns log from getting too giant

src/freedombone-upgrade

@@ -153,6 +153,9 @@ if [ -d "$PROJECT_DIR" ]; then
         android_update_apps yes
         populate_keyservers
         disable_email_encryption_at_rest
+        if [ -f /var/log/freedns_@_update.log ]; then
+            rm /var/log/freedns_@_update.log
+        fi
         #defrag_filesystem
 
         # reinstall tor from backports