Merge pull request #4250 from GPCsolutions/dolibarr-4242

FIX #4242 Allow disabling dashes in documents

htdocs/core/modules/supplier_proposal/doc/pdf_aurore.modules.php

@@ -494,7 +494,7 @@ class pdf_aurore extends ModelePDFSupplierProposal
 					if ($posYAfterImage > $posYAfterDescription) $nexY=$posYAfterImage;
 
 					// Add line
-					if (! empty($conf->global->MAIN_PDF_DASH_BETWEEN_LINES) && $i < ($nblignes - 1))
+					if ($conf->global->MAIN_PDF_DASH_BETWEEN_LINES && $i < ($nblignes - 1))
 					{
 						$pdf->setPage($pageposafter);
 						$pdf->SetLineStyle(array('dash'=>'1,1','color'=>array(80,80,80)));