fix 1.8 warning about space before argument parenthesis

Author: jvazquez-r7

modules/auxiliary/scanner/sap/sap_soap_rfc_read_table.rb

@@ -58,7 +58,7 @@ def run_host(ip)
 		columns = []
 		columns << '*' if datastore['FIELDS'].nil? or datastore['FIELDS'].empty?
 		if datastore['FIELDS']
-			columns.push (datastore['FIELDS']) if datastore['FIELDS'] =~ /^\w?/
+			columns.push(datastore['FIELDS']) if datastore['FIELDS'] =~ /^\w?/
 			columns = datastore['FIELDS'].split(',') if datastore['FIELDS'] =~ /\w*,\w*/
 		end
 		fields = ''