openvas-check-setup output immediately after set up

openvas-check-setup 2.3.1
  Test completeness and readiness of OpenVAS-8
  (add '--v6' or '--v7' or '--v9'
   if you want to check for another OpenVAS version)
  Please report us any non-detected problems and
  help us to improve this check routine:
  http://lists.wald.intevation.org/mailman/listinfo/openvas-discuss
  Send us the log-file (/tmp/openvas-check-setup.log) to help analyze the problem.

  Use the parameter --server to skip checks for client tools
  like GSD and OpenVAS-CLI.
Step 1: Checking OpenVAS Scanner ...
        OK: OpenVAS Scanner is present in version 5.0.3.
        OK: OpenVAS Scanner CA Certificate is present as /usr/local/var/lib/openvas/CA/cacert.pem.
        OK: redis-server is present in version v=2.8.4.
        OK: scanner (kb_location setting) is configured properly using the redis-server socket: /tmp/redis.sock
        OK: redis-server is running and listening on socket: /tmp/redis.sock.
        OK: redis-server configuration is OK and redis-server is running.
        OK: NVT collection in /usr/local/var/lib/openvas/plugins contains 39767 NVTs.
        WARNING: Signature checking of NVTs is not enabled in OpenVAS Scanner.
        SUGGEST: Enable signature checking (see http://www.openvas.org/trusted-nvts.html).
        OK: The NVT cache in /usr/local/var/cache/openvas contains 39767 files for 39767 NVTs.
Step 2: Checking OpenVAS Manager ...
        OK: OpenVAS Manager is present in version 6.0.3.
        OK: OpenVAS Manager client certificate is present as /usr/local/var/lib/openvas/CA/clientcert.pem.
        OK: OpenVAS Manager database found in /usr/local/var/lib/openvas/mgr/tasks.db.
        OK: Access rights for the OpenVAS Manager database are correct.
        OK: At least one user exists.
        OK: sqlite3 found, extended checks of the OpenVAS Manager installation enabled.
        OK: OpenVAS Manager database is at revision 146.
        OK: OpenVAS Manager expects database at revision 146.
        OK: Database schema is up to date.
        OK: OpenVAS Manager database contains information about 39767 NVTs.
        OK: OpenVAS SCAP database found in /usr/local/var/lib/openvas/scap-data/scap.db.
        OK: OpenVAS CERT database found in /usr/local/var/lib/openvas/cert-data/cert.db.
        OK: xsltproc found.
Step 3: Checking user configuration ...
        WARNING: Your password policy is empty.
        SUGGEST: Edit the /usr/local/etc/openvas/pwpolicy.conf file to set a password policy.
Step 4: Checking Greenbone Security Assistant (GSA) ...
        OK: Greenbone Security Assistant is present in version 6.0.3.
Step 5: Checking OpenVAS CLI ...
        OK: OpenVAS CLI version 1.4.1.
Step 6: Checking Greenbone Security Desktop (GSD) ...
        SKIP: Skipping check for Greenbone Security Desktop.
Step 7: Checking if OpenVAS services are up and running ...
        OK: netstat found, extended checks of the OpenVAS services enabled.
        OK: OpenVAS Scanner is running and listening on all interfaces.
        OK: OpenVAS Scanner is listening on port 9391, which is the default port.
        OK: OpenVAS Manager is running and listening on all interfaces.
        OK: OpenVAS Manager is listening on port 9390, which is the default port.
        WARNING: Greenbone Security Assistant is listening on port 443 80, which is NOT the default port!
        SUGGEST: Ensure Greenbone Security Assistant is listening on one of the following ports: 80, 443, 9392.
/vagrant/openvas-check-setup: line 789: [: too many arguments
Step 8: Checking nmap installation ...
/vagrant/openvas-check-setup: line 799: nmap: command not found
        WARNING: Your version of nmap is not fully supported:
        SUGGEST: You should install nmap 5.51 if you plan to use the nmap NSE NVTs.
Step 10: Checking presence of optional tools ...
        WARNING: Could not find pdflatex binary, the PDF report format will not work.
        SUGGEST: Install pdflatex.
        OK: ssh-keygen found, LSC credential generation for GNU/Linux targets is likely to work.
        WARNING: Could not find rpm binary, LSC credential package generation for RPM and DEB based targets will not work.
        SUGGEST: Install rpm.
        WARNING: Could not find makensis binary, LSC credential package generation for Microsoft Windows targets will not work.
        SUGGEST: Install nsis.
It seems like your OpenVAS-8 installation is OK.
If you think it is not OK, please report your observation
and help us to improve this check routine:
http://lists.wald.intevation.org/mailman/listinfo/openvas-discuss
Please attach the log-file (/tmp/openvas-check-setup.log) to help us analyze the problem.