avoiding usage of _expandRequestShortSyntax

[azisyus]

This PR passes an array in purpose to avoid _expandRequestShortSyntax, as result the program will hit here instead of "_expandRequestShortSyntax". The main problem is that function can't parse a string like database.del-db.filter.webspace-name=testdomain.com because it uses '.' as parameter and as result all we got is;

array:5 [
  0 => "database"
  1 => "del-db"
  2 => "filter"
  3 => "webspace-name=testdomain"
  4 => "com"
]

<?xml version="1.0" encoding="UTF-8"?>\n

<packet>
	<database>
		<del-db>
			<filter>
				<webspace-name>testdomain
					<com/>
				</webspace-name>
			</filter>
		</del-db>
	</database>
</packet>

and this causes to broken xml output which can't processed by plesk.

[sibprogrammer]

Thank you very much for your pull request! The issue has been addressed in scope of 7626f9c