title: pg_dump: too many command-line arguments (first is "--host=localhost")
body: <p>I have gone through some similar question on SO but didn't find any workable solutions.</p>
  
  <p>I tried using <code>djang-dbbackup</code> module with my Django project.
  I run <code>$ python manage.py dbbackup</code> and got this error:<br></p>
  
  <pre><code>CommandConnectorError: Error running:  pg_dump last_cosmetics --host=localhost --username=postgres --no-password --clean 
  b'pg_dump: too many command-line arguments (first is "--host=localhost")\r\nTry "pg_dump --help" for more information.\r\n'
  </code></pre>
  
  <p>Also I tried running it on Windows cmd.</p>
  
  <pre><code>pg_dump last_cosmetics --host=localhost --username=postgres --no-password --clean
  </code></pre>
  
  <p>But I still get the same error.</p>