update_nextcloud.sh: empty log file at end of the script.

update_nextcloud.sh

@@ -1867,6 +1867,15 @@ if $(systemctl list-units --full -all | grep -Fq "notify_push") ; then
    fi
 fi
 
+echononl "   Empty log file.."
+: > ${WEB_BASE_DIR}/logs/cloud.log > $log_file 2>&1
+if [[ $? -eq 0 ]]; then
+   echo_ok
+else
+   echo_failed
+   error "\n\n$(cat $log_file)"
+fi
+
 blank_line
 clean_up 0